Premium Essay

# Qnt/561: Week One Assignment

Submitted By kiosko24
Words 975
Pages 4
QNT/561: Week One Assignment
Exercises 80, 82, and 87 (Ch. 3)
Exercise 80* a. The times are a population because we are considering the wait times for all of the customers seated on Saturday night. b. To find the mean: µ = ∑ X N µ = 1021 25 µ = 40.84

To find the median:

The midpoint value of the population is 39.

c. To find the range:
Range = Largest Value – Smallest Value
Range = 67 – 23
Range = 44

To find the standard deviation: σ = √∑ (X - µ)2 N σ = √∑(X – 40.84) 2 = √5291.36 = √211.65 = 14.55 25 25
Exercise 82* a. To find the mean cost:
X = ∑fM = 7,060 = \$141.20 N 50 b. To find the standard deviation: s = √∑f (M - X)2 = √33,728 = √688.33 = 26.24 n – 1 50 - 1 c. To find the proportion of costs within two standard deviations of the mean:
X ± 2s
141.2 + 2(26.24) = 193.68
141.2 - 2(26.24) = 88.72
The electricity costs are all almost all within \$89 to \$194.
Exercise 87* a. Select the variable selling price. 1. Mean = 221.1029
Median = 213.6
Standard Deviation = 47.1054 2. The mean selling price for a home in the Denver, CO area is about \$221,103 while the median price is a bit lower at \$213,600. With the standard deviation being high at \$47,105, the range of home prices is quite big. b. Select the variable referring to the area of the home in square feet. 1. Mean = 2223.81
Median = 2200
Standard Deviation = 248.6594 2. The mean size of a home in the Denver, CO is about 2224 square feet while the median size is a bit lower at 2200 square feet. The standard deviation of 248.6594 is somewhat low indicating the homes being sold are all close to the same size.
Exercises 34, 36, and 38 (Ch. 5)
Exercise 34
P(A3|B1) = P(A3)P(B1|A3) P(A1)P(B1|A1) + P(A2)P(B1|A2) + P(A3)P(B1|A3) = (.40)(.10)...

### Similar Documents

Premium Essay

#### Qnt 561 Week 5 Weekly Learning Assessments - Assignment

...2 7 6.0 8 11 8.0 3 11 3.6 9 10 8.0 4 12 4.0 10 12 6.0 5 8 5.0 11 6 8.6 6 7 10.0 12 6 8.0 a. If we want to estimate selling price on the basis of the age of the car, which variable is the dependent variable and which is the independent variable? b-1. Determine the correlation coefficient. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) b-2. Determine the coefficient of determination. (Round your answer to 3 decimal places.) c. Interpret the correlation coefficient. Does it surprise you that the correlation coefficient is negative? (Round your answer to nearest whole number.) Want to see the Individual Assessment of Week 5..?? Click QNT 561 Week 5 Weekly Learning Assessments Chapter 13 Exercise 12 The Student Government Association at Middle Carolina University wanted to demonstrate the relationship between the number of beers a student drinks and his or her blood alcohol content (BAC). A random sample of 18 students participated in a study in which each participating student was randomly assigned a number of 12-ounce cans of beer to drink. Thirty minutes after they consumed their assigned number of beers, a member of the local sheriff’s office measured their blood alcohol content. The sample information is reported below. ......

Words: 1756 - Pages: 8

Premium Essay

#### Qnt 561 Week 4 Weekly Learning Assessments - Assignment

...QNT 561 Week 4 Weekly Learning Assessments - Assignment Chapter 10 Exercise 2 [The following information applies to the questions displayed below.] A sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.01 significance level H0: μ ≤ 10 H1: μ > 10 1. Award: 10 out of 10.00 points a. Is this a one- or two-tailed test? b. What is the decision rule? c. What is the value of the test statistic? d. What is your decision regarding H0? e. What is the p-value? Chapter 10 Exercise 10 Given the following hypotheses: H0 : μ = 400 H1 : μ ≠ 400 A random sample of 12 observations is selected from a normal population. The sample mean was 407 and the sample standard deviation 6. Using the .01 significance level: a. State the decision rule. (Negative amount should be indicated by a minus sign. Round your answers to 3 decimal places.) b. Compute the value of the test statistic. (Round your answer to 3 decimal places.) c. What is your decision regarding the null hypothesis? To download QNT 561 Week 2 Complete Answers click here QNT 561 Week 2 Weekly Learning Assessments Chapter 10 Exercise 12 The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart. The mean assembly time for a random sample of 24 carts, using the new method,...

Words: 1953 - Pages: 8

Premium Essay

#### Qnt 561 Week 2 Weekly Learning Assessment – Assignment

...president by lottery. a. What is the probability one of the minority candidates is hired? (Round your answer to 1 decimal place.) b. Which concept of probability did you use to make this estimate? Chapter 5 Exercise 14 The chair of the board of directors says, "There is a 50% chance this company will earn a profit, a 30% chance it will break even, and a 20% chance it will lose money next quarter." a. Use an addition rule to find the probability the company will not lose money next quarter. (Round your answer to 2 decimal places.) b. Use the complement rule to find the probability it will not lose money next quarter. (Round your answer to 2 decimal places.) Find the Weekly Learning Assessment answers here QNT 561 Week 2 Weekly Learning Assessments Chapter 5 Exercise 22 A National Park Service survey of visitors to the Rocky Mountain region revealed that 50% visit Yellowstone Park, 40% visit the Tetons, and 35% visit both. a. What is the probability a vacationer will visit at least one of these attractions? (Round your answer to 2 decimal places.) b. What is the probability .35 called? c. Are the events mutually exclusive? Chapter 5 Exercise 34 P(A1) = .20, P(A2) = .40, and P(A3) = .40. P(B1|A1) = .25. P(B1|A2) = .05, and P(B1|A3) = .10. Use Bayes' theorem to determine P(A3|B1). (Round your answer to 4 decimal places.) Want to download the Complete Weekly Assignment of QNT/561 Class..?? Click QNT 561 Weekly Learning Assessments Chapter 5......

Words: 1187 - Pages: 5

Premium Essay

#### Homework

...Business Research Methods, Part 1 QNT/561 July 5, 2012 Dr. Jaejoo Lim When attending a college is it fair for students to work in teams or alone when 30% of the grade is from learning teams? Many students at the University of Phoenix use the learning teams as a crutch because he or she does not participate as much and still receives the same grade as others who work hard. Because of this many students decided to leave the University and find other colleges who do not work in learning team. However, there are many students who like working in learning teams because he or she can learn from others and has someone to call on when the workload is heavy. With this research the question still remains is learning teams effective at colleges, and do learning teams hinder the University of Phoenix retention rate? This paper will research a question, discuss the dilemma, describe the dependent, and independent variables, and give the data collected methods. Questions Is learning team effective at a college? Is learning teams hindering The University of Phoenix retention rate? Dilemma According to Dr. Cherry (2007) the workforce is leaning toward team building and the students of University of Phoenix will have an advantage in the workplace. In a recent study conducted on graduates and undergraduates students researchers found students in upper graduate’s courses prefer learning teams because it is consistent, grows collaborative skills, and provides......

Words: 465 - Pages: 2

Premium Essay

#### Get Online Help with Ur Assignment Ashford a+Material

...http://homeworktimes.com/downloads/acc-202-complete-course-acc-202-entire-course/ http://homeworktimes.com/downloads/acc-206-entire-course-new/ http://homeworktimes.com/downloads/acc-206-new-week-1-assignment-chapter-one-problems/ http://homeworktimes.com/downloads/acc-206-new-week-2-assignment-chapter-two-three-problems/ http://homeworktimes.com/downloads/acc-206-new-week-2-journal-institute-management-accounting/ http://homeworktimes.com/downloads/acc-206-new-week-3-assignment-chapter-four-five-problems/ http://homeworktimes.com/downloads/acc-206-new-week-3-journal-hershey-company/ http://homeworktimes.com/downloads/acc-206-new-week-4-assignment-chapter-six-seven-problems/ http://homeworktimes.com/downloads/acc-206-new-week-5-assignment-chapter-eight-problems/ http://homeworktimes.com/downloads/acc-206-new-week-5-assignment-final-paper/ http://homeworktimes.com/downloads/acc-212-financial-accounting/ http://homeworktimes.com/downloads/acc-250-complete-course-acc-205-entire-course/ http://homeworktimes.com/downloads/acc-290-complete-course-acc-290-entire-course/ http://homeworktimes.com/downloads/acc-291-complete-course-acc-290-entire-course/ http://homeworktimes.com/downloads/acc-340-entire-course-acc-340-complete-course/ http://homeworktimes.com/downloads/acc-400-complete-course-acc-400-entire-course/ http://homeworktimes.com/downloads/acc-407-entire-course/ http://homeworktimes.com/downloads/acc-455-complete-course/ http://homeworktimes.com/downl...

Words: 3197 - Pages: 13

Free Essay

#### Butterflies

...Fin571 Week 5 Problem Sets Lamar September 19, 2010 FIN/571 University of Phoenix Denny Frischkorn Week 5 Text Problem Sets Exercises Chapter 17 B1: (Choosing Financial... Save Paper Eco561 Week 1 quantity supplied on a fixed supply curve, during the pre-Superbowl weeks, there is a spike in the demand and quantity supplied as consumers are readying for the big... Save Paper International Corporate Finance/Fin Gm571 Week 3 The current credit terms dictates 15% upon purchase and 85% the following week (Emery, Finnerty, & Stowe, 2007). As valuable a customer who LS is to Murray, LS... Save Paper Week 2 Checkpoint Xeco212 iPad within hours, and retailers werent replenished for weeks because the demand was too high for production. So when they did this, they didnt have a significant... Save Paper Hca230 Week 1 Assignment HCA230 Week 1 Assignment Today Managed Care is the most predominant form of insurance in the United States. Insurances such as PPO, POS, and HMO plans are all... Save Paper Two Weeks With The Queen courage and prejudice expressed in a very realistic way that we can relate to. Two Weeks with the Queen gives the reader a sense of reality. In the beginning... Save Paper Week 5 Qnt/561 show that the production rate at the Scranton Plant has changed from 200 per week. The Two Sample Test of Hypothesis The two- sample hypothesis testing... Save Paper TraInIng In Acc point around which a learning organization may develop. The training......

Words: 551 - Pages: 3

Premium Essay

#### Eco 100 Entire Course

...This work contains QNT 561 Week 4 Individual Assignment Types of Surveys Paper Individual Assignment: Types of Surveys Paper Resource: Business Research Methods Answer question 5 on p. 270 of Business Research Methods. Write a 150- to 200-word response for each part of the question. Provide a rationale to support your answers. Mathematics - Statistics 1. Consider the following raw data, which is the result of selecting a random sample of 20 condominium sales in a particular development.  The sale prices are given in thousands of dollars (\$1,000s). 131  142  120  135  126 153  135  131  126  133 147  137  130  126  140 138  144  132  132  138 1a.  Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, Max for the above sample data on sale prices. 1b.  In the context of this situation, interpret the Median, Q1, and Q3. 2.  Consider the following data on newly hired employees in relation to which part of the country they were born and their highest degree attained. HS  BS  MS   PHD  Total East  3  5  2  1  11 Midwest  7  9  2  0  18 South  5  8  6  2  21 West  1  7  8  6  22 Total  16  29  18  9  72 If you choose one person at random, then find the probability that the person Has a PHD Is from the East and has a BS as the highest degree attained. Has only a HS degree, given that person is from the West. 3.  Historically, 70% of your customers at...

Words: 383 - Pages: 2

Premium Essay

#### Business Research Project

...Descriptive Statistics Introduction This week’s team assignment is to collect the team member’s descriptive statistics for week four incorporating the best elements into one team data analysis paper, including data and charts. Descriptive Statistics The research topic for this paper is “McDonald’s is Closing Hundreds of Stores.” As part of the research a sample size of 400 was selected to ensure accuracy of results based on the population size of 410. The given sample size was randomly surveyed to test the variables – Independent Variable - Change in consumer food preference and competitive market place and Dependent Variable – Reduced sales hence reduced profit. Age Three Hundred and Eighty-Five McDonald’s consumers were randomly selected and their ages measured. The age ranges were 15 and 65 years. Average consumer is aged 31 with a standard deviation of 14 years. Approximately half or more of their ages are above 31. Income The income of the randomly surveyed consumers is averaged at \$30.82 and with a standard deviation of \$14.04. Income range is \$15 to \$65 and there is enough evidence that half or more of these consumers averages \$30.82 per year. Strengths and Weaknesses of Team Members’ Individual Assignments Efforts were made by each team member to better understand the use of the statistical tool made available to us (MegaStat). More knowledge was gained and applied in the interpretation of data and findings on this paper. Additionally,......

Words: 625 - Pages: 3

Premium Essay

#### Cataolog

...ork2012 - 2013 Catalog A Message from the President “Sullivan University is truly a unique and student success focused institution.” I have shared that statement with numerous groups and it simply summarizes my basic philosophy of what Sullivan is all about. When I say that Sullivan is “student success focused,” I feel as President that I owe a definition of this statement to all who are considering Sullivan University. First, Sullivan is unique among institutions of higher education with its innovative, career-first curriculum. You can earn a career diploma or certificate in a year or less and then accept employment while still being able to complete your associate, bachelor’s, master’s or doctoral degree by attending during the day, evenings, weekends, or online. Business and industry do not expand or hire new employees only in May or June each year. Yet most institutions of higher education operate on a nine-month school year with almost everyone graduating in May. We remained focused on your success and education, and continue to offer our students the opportunity to begin classes or to graduate four times a year with our flexible, year-round full-time schedule of classes. If you really want to attend a school where your needs (your real needs) come first, consider Sullivan University. I believe we can help you exceed your expectations. Since words cannot fully describe the atmosphere at Sullivan University, please accept my personal invitation to visit and......

Words: 103133 - Pages: 413