...Is the filtration of groundwater important? Charity Palmer SCI 207: Dependence of Man of the Environment Instructor Holly Dust July 27th 2014 Abstract Industrialization and increasing demands on agriculture around the world is rapidly polluting our ground water. The human population depends on ground water as our biggest source of drinking water. A few simple experiments have been done to find out what changes some of the contaminants cause in the ground water. Samples of tap water and bottled water were analyzed for safety. Chemicals such as oil, vinegar, and liquid detergent cause odor changes and color changes in the water samples. Using sand, charcoal and rocks formed a filtration system that was used to simulate how water is filtered. Tap water turned out to be the safest water to drink, which was rather surprising. The tap water had less contamination than the bottled water during the experiment. Introduction Clean water is a major necessity for our lives. Three-quarters of the Earth’s surface is covered by water making clean water for drinking and cooking an important issue. The majority of water on our planet is comprised of salt water found in the oceans. That leaves only three percent of the water on Earth freshwater. (Dale 2011) Human beings used 69.3 gallons of water per individual each day on average. (Dale 2011) Water is used to do our laundry, wash our cars, feed our pets, water the gardens and lawns we have. Water is used for us to take...
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...We now need to demonstrate how this statement is used by use of a program. Just open your text editor and then create a new file. Save the file with a name having a “.scala” extension. Add the following code to the file: object TestProgram { def main(args: Array[String]) { var a = 50; if( a == 20 ){ println("The value of A is 20"); }else if( a == 30 ){ println("The value of A is 30"); }else if( a == 50 ){ println("The value of A is 50"); }else{ println("None of the conditions was met"); } } } After adding the code, just save the file and then run it. Observe the output that you get and then observe the output that you get. It should be as follows: The program worked effectively as we have initialized our variable “a” to 50. If you modify...
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...Review Test Submission: QUIZ #1 (Chapters 1, 2, 3) Content User | James Wyatt | Course | 201630 Summer 4: Employment Law for Managers (991) | Test | QUIZ #1 (Chapters 1, 2, 3) | Started | 7/8/16 12:53 PM | Submitted | 7/8/16 1:04 PM | Status | Completed | Attempt Score | 0 out of 0 points | Time Elapsed | 11 minutes | Instructions | This quiz is drawn from the course readings and the weekly graded case discussions. It does not count towards a student’s final course grade. However, students will find it helpful for assessing reading comprehension and for better understanding legal issues that might have been complicated. Students will see the correct answers right after taking the quiz and can repeat the quiz (if wish) with a different set of questions. | Results Displayed | All Answers, Submitted Answers, Correct Answers, Feedback | * Question 1 0 out of 0 points | | | For a disparate treatment case involving pretext, which is the correct order of proof? | | | | | Selected Answer: | plaintiff’s primary evidence, defendant’s primary evidence, plaintiff’s rebuttal showing discriminatory motive | Answers: | plaintiff’s prima facie case, defendant’s lawful motive, plaintiff’s additional evidence supporting discriminatory intent | | plaintiff’s evidence supporting discriminatory intent, defendant’s lawful motive, plaintiff’s prima facie case | | plaintiff’s primary evidence, defendant’s primary evidence, plaintiff’s rebuttal showing...
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...Name____________________ Student ID____________________ ERTH 1060 & GEOG 1060 Natural Disasters Midterm Exam October 2008 Test #01 The test has 55 multiple choice questions. You will have 80 minutes to complete the test. Use the scantron sheet provided to select the best answer for each question. Use a soft pencil, not a pen. Make sure to enter your name and student ID in the circles and spaces provided on this test paper and on the scantron. Submit both the test sheet and your scantron. PLEASE INDICATE THE VERSION OF THIS TEST ON THE SCANTRON SHEET (section column). Completely erase mistakes and other unwanted marks on the scantron sheet. Some questions will have two or more answers that may seem possible, but only one is the best answer. Please read the questions completely, and check your answers. 1. Which seismic waves actually penetrate the inner core? A. Primary waves B. Secondary waves C. Raleigh waves D. Both A and B E. Love waves 2. Based on historical data, only location to have experienced a M5 (moment scale) or greater within 300 km: A. Montreal, QC B. Vancouver, BC C. Sydney, NS D. None of the above have experienced such a large earthquake E. All of the above have experienced an M5 or greater 3. This is not monitored in order to predict volcanic eruptions: A. temperature of steam B. animal reactions C. changes in the shape of the volcano D. earthquake patterns E. CO2 and radon gas 4. Few, if any...
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...the intentions that they will start working at the organization within a month. With the start date quickly approaching, Mr. Robins discovers that the new hires are not prepared to begin employment. Most of them do not have all required documentation and none of them completed the mandatory drug test. Mr. Robins needs to contact all new hires immediately, in order to complete all prerequisites needed to finalize their application process, on time for their start date at ABC Inc. Additionally, Mr. Robins should seek extra training on the new hire application and training process. Background Mr. Carl Robins is a new recruiter to ABC Inc. and has been employed with the company for about six months and just experienced his first recruiting attempt. Mr. Robins hired 15 applicants with the intentions that they would start training on June 15 and start working some time in July. Right after the Memorial Day weekend, Mr. Robins discovers that the new hires are not ready to start on June 15 after looking through their files. Some applicants did not have applications completely filled out and some had their transcripts and all but three orientation manuals missing. He also noticed that all applicants did not take the mandatory drug test. Additionally, he finds that the orientation room is booked throughout June. Key Problems Key problems are that the new employees are unprepared for the June 15 start date and which is a couple of weeks away. The recruiter has a job to ensure that the...
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...more operands are: Choose one answer. | a. Syntax | | | b. Op codes | | | c. Operators | | | d. Program ops | | | e. None of the above | | Correct Marks for this submission: 1/1. Question2 Marks: 1 Programmer-defined names of memory locations that may hold data are: Choose one answer. | a. Operators | | | b. Variables | | | c. Syntax | | | d. Operands | | | e. None of the above. | | Correct Marks for this submission: 1/1. Question3 Marks: 1 Which of the following best describes an operator? Choose one answer. | a. An operator is a rule that must be followed when constructing a program. | | | b. An operator allows you to perform operations on one or more pieces of data. | | | c. An operator marks the beginning or ending of a statement, or is used to separate items in a list. | | | d. An operator is a word that has a special meaning. | | | e. An operator is a symbolic name that refers to a variable. | | Correct Marks for this submission: 1/1. Question4 Marks: 1 What does the term hardware refer to? Choose one answer. | a. The relative difficulty of programming | | | b. The physical components that a computer is made of | | | c. The way a computer's storage space is organized | | | d. The logical flow of instructions | | | e. None of the above. | | Correct Marks for this submission: 1/1. Question5 Marks: 1 The computer's main memory is commonly known as: Choose...
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...Statistics Name Institution Question 1 of 20 | 5.0 Points | When comparing two population means with an unknown standard deviation you use a t test and you use N-2 degrees of freedom. A. True | B. False | | Reset Selection Question 2 of 20 | 5.0 Points | Pretend you want to determine whether the mean weekly sales of soup are the same when the soup is the featured item and when it is a normal item on the menu. When it is the featured item the sample mean is 66 and the population standard deviation is 3 with a sample size of 23. When it is a normal item the sample mean is 53 with a population standard deviation of 4 and a sample size of 7. Given this information we could use a t test for two independent means. A. True | B. False | | Reset Selection Question 3 of 20 | 5.0 Points | The alternative hypothesis can be proven if the alternative hypothesis is rejected. A. True | B. False | | Reset Selection Question 4 of 20 | 5.0 Points | You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 50 and a population standard deviation 5 and a sample size of 100. Machine 2 has a sample mean of 52 and a population standard deviation of 6 with a sample size of 36. With an alpha of .10 can we claim that there is a difference between the output of the two machines. Which of the following statements are true? A. We will reject the null hypothesis and prove there is a difference between...
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...ch2 Student: ___________________________________________________________________________ 1. Planning, implementation, and control are basic jobs of all managers. True False 2. The three basic jobs in the marketing management process are planning, implementation, and control. True False 3. Strategic planning is a top management job that includes planning only for marketing areas. True False 4. Strategic planning is the managerial process of developing and maintaining a match between an organization's resources and its market opportunities. True False 5. Finding attractive opportunities and developing profitable marketing strategies are the tasks included in the marketing manager's marketing strategy planning job. True False 6. A marketing strategy is composed of two interrelated parts--a target market and a marketing mix. True False 7. A marketing strategy is composed of two interrelated parts--planning and implementation. True False 8. The two parts of a marketing strategy are an attractive opportunity and a target market. True False 9. Mass marketing means focusing on some specific customers, as opposed to assuming that everyone is the same and will want whatever the firm offers. True False 10. The terms mass marketing and mass marketers mean the same thing. True False 11. Potential customers are all alike. True False 12. "Mass marketers" like Target usually try to aim at clearly defined target markets. True False 13. The "four Ps" of the marketing mix...
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...Equipment: Sodium Hydroxide (0.4M); Dilute Ammonia Solution; Mummion; Test tubes – holds the chemicals and provides a clear view of its contents Dropping Pipettes – used to precisely drop liquids and works better than pouring Goggles – protects eyes from contamination which might lead to irritation or blindness Lab coat - protects clothing and skin from chemicals or substances Test tube holder – holds the test tubes whilst inserting chemicals or mummion Spatula – used for scraping and putting Mummion into a flask or test tube Method Prior to purifying the Mummion, the next experiment is the Cation test, which is a reliable way to test our Mummion. This is done by adding Sodium Hydroxide to the Cation in question. If a precipitate forms, more Sodium Hydroxide should be added to see if the precipitate dissolves. Soon after, if a white gelatinous precipitate forms, another sample of the salt solution was put in a salt solution was put in a test tube and then dilute ammonia solution was added. If, after that a precipitate forms, more dilute ammonia solution was added to see if the precipitate finally...
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...1. Since all of our tests are open book/open note, the better organized your notes are, the better. If you get a study guide from the instructor, it's a good idea to make a flash card for each topic. On the card, highlight the topic, not the chapter page in the book where you can find the information, then put the relevant information on the card as well. This will not only give you a good study tool, it will also give you a great test taking aid. 2. Since you are taking the test at home, you should definitely take it under the same conditions you study under. For example, if you have the TV or music on while you study, don't try to go totally silent when you test. If you listen to specific music while studying, listening to the same music while you test can help you recall information more easily and more quickly. Have a quick snack/drink on hand with your notes so that you can stay focused. 3. Before you even open the test, take 2-3 deep breaths and tell yourself that you KNOW this stuff! You have it in your head, in your notes, and in your text. 4. Once you start testing, read each question carefully. Often when doing this, we get an idea of what the answer should be, then it's just a matter of picking the right option. 5. For multiple choice questions, there are a couple of strategies you can employ: * Read carefully through all of the options. Usually you will be able to eliminate at least two of them right away, leaving you with only two options...
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...variable CAGE using 25%, 50% and 75% quantile at FSTAT=1. Using PROC UNIVARIATE to decide the cut point as follows: Variables | 25% Quantile | 50% Quantile | 75% Quantile | AGE | 64 | 72 | 80 | Table 2.1 Quantiles Cut Point for AGE Thus, all the variables are categorical, such that we can use the LIFETEST to test if different levels of covariates have the same effect on the survival curve. We are doing hypothesis testing for each predictor: H0:SSEX=0=SSEX=1 vs. H1:Not H0 H0:SMI=1=SMI=2=S(MI=2) vs. H1:Not H0 H0:SCAGE=0=SCAGE=1=SCAGE=2=S(CAGE=3) vs. H1:Not H0 First, we will test the equality over SEX, and compare the KM curve using LIFETEST and PHREG. Test | Chi-Square | DF | Pr > Chi-Square | Log-Rank | 9.4271 | 1 | 0.0021 | Wilcoxon | 9.2239 | 1 | 0.0024 | -2Log(LR) | 12.0677 | 1 | 0.0005 | Table 2.2 Test of Equality over SEX using LIFETEST Figure 2.1 KM Survival Curve for Male (Red) and Female (Blue) From Table 2.2 and Figure 2.1, we can easily see that there is significant difference between male and female. Then, we use PHREG to test SEX and draw the PHREG curve. Test |...
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...Solutions to Questions on Hypothesis Testing and Regression 1. A mileage test is conducted for a new car model, the “Pizzazz.” Thirty (n=30) random selected Pizzazzes are driven for a month and the mileage is carefully measured in each. The mean mileage for the sample is 28.6 miles per gallon (mpg) and the sample standard deviation is 2.2 mpg. Estimate a 95% confidence interval for the mean mpg in the entire population of Pizzazzes (you might need to round your answer a little bit to agree with mine). (a) (b) (c) (d) (e) (23.42, 33.84) (27.81, 29.39) (26.82, 30.47) (27.23, 30.03) None of the above 2. Determine the test statistic for testing the null hypothesis that the population mean is 27 mpg ( H0 : µ = 27 Ha : µ ≠ 27 ) (a) (b) (c) (d) (e) (f) t = 3.98 t = -3.98 t = 4.6 t = -4.6 t = 1.96 None of the above 3. A Type II error is made when a. b. c. d. e. the null hypothesis is accepted when it is false. the null hypothesis is rejected when it is true. the alternate hypothesis is accepted when it is false. the null hypothesis is accepted when it is true. the alternate hypothesis is accepted when it is true. 4. A recent USA TODAY/CNN/Gallup Poll showed that most American people support Bush’s efforts in the Middle East peace process. The poll of 2000 adults was conducted and 1243 people said they supported Bush’s efforts. a) Find a 95% confidence interval for p, the fraction of Americans who support Bush’s efforts phat =...
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...during "dangerous" scenarios. All 20 participants are 18, but only half of them have a driver's license. What statistical test would we use to compare the number or words spoken for people with and without licenses. | | | | | Selected Answer: | Independent samples t test | Answers: | Dependent samples t test | | Independent samples t test | | | | | * Question 2 10 out of 10 points | | | We want to know how having kids affects happiness. We surveyed 100 couples that were expecting a child in the next three months. We went back and surveyed those same 100 couples one year later. What test would we use to compare their previous scores with their current scores? | | | | | Selected Answer: | Dependent samples | Answers: | Dependent samples | | Independent samples | | | | | * Question 3 10 out of 10 points | | | We are doing a dependent samples t-test and we're in the middle of step 4 of our null hypothesis test. We determined that D̅ = .25, SD̅ = .05, n = 9Calculate tD/ SD= Answer | | | | | Selected Answer: | 5 | Answers: | 5 | | 15.006 | | .0166 | | None of the above | | | | | * Question 4 10 out of 10 points | | | I just used Excel to do a two-tailed dependent samples t-test and it gave me the output that I pasted below. How would I list the results of my t-test? Hypothesized...
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...Central Recruitment and Promotion Dept., Corporate Centre, Tulsiani Chambers, 1st Floor, ( West Wing), 212, Free Press Journal Marg, Nariman Point - Mumbai 400 021. INTRODUCTION This Booklet gives you detailed information about the objective type Competitive examination for recruitment of Probationary Officers in State Bank of India. This post was advertised in the Employment News/Rozgar Samachar issue dated 9-15 February, 2013 and on the Bank’s website www.statebankofindia.com and www.sbi.co.in. The terms and conditions, period of probation, emoluments etc. were given in the advertisement. You should ensure that you are eligible in respect of age, educational qualification, nationality as stipulated in the advertisement. Details of tests are given ahead in the booklet. 1. 2. 3. GENERAL INSTRUCTIONS Particulars to be Noted : Please note carefully your Roll Number, Registration Number, date, time and venue for the examination given in the call letter. Punctuality in Attendance : Candidates should be present at the examination hall at the time given in the call letter. Candidates arriving late will not be permitted to enter the Examination Hall. Call letter to be Surrendered : Affix firmly a copy of your recent passport size photograph in the space provided for it in the call letter and bring it with you alongwith photo identity proof in original and a photocopy when you come to the venue for the examination. You will not be permitted to appear for the examination if you come...
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...1028. One indicia of independent contractor (rather than employee) status is when the individual performing the services is paid based on tasks performed (rather than time spent). *a. True b. False 1029. In some cases it may be appropriate for a taxpayer to report work-related expenses by using both Form 2106 and Schedule C. *a. True b. False 1030. The IRS will issue advanced rulings as to whether a worker’s status is that of an employee or an independent contractor. *a. True b. False 1031. Jake performs services for Maude. If Maude provides Jake with a helper and tools, this is indicative of independent contractor (rather than employee) status. a. True *b. False 1032. A statutory employee is not a common law employee but is subject to income tax withholdings. a. True *b. False 1033. For tax purposes, a statutory employee is not treated the same as a common law employee. *a. True b. False 1034. If an individual is subject to the direction or control of another only to the extent of the end result but not as to the means of accomplishment, an employer-employee relationship does not exist. *a. True b. False 1035. The work-related expenses of an independent contractor will be subject to the 2%-of-AGI floor. a. True *b. False 1036. After she finishes working at her main job, Ann returns home, has dinner, then drives to her second job. Ann may deduct the mileage between her home and second job. a. True *b. False 1037. After...
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