# Qnt 561 Week 4 Weekly Learning Assessments - Assignment

Submitted By StudenteHelp
Words 1953
Pages 8
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?

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, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes. Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
a. What is the decision rule? (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)
b. Compute the value of the test statistic. (Negative amount should be indicated by a...

### Similar Documents

Free Essay

#### Qnt 561 Week 6 Weekly Learning Assessments - Assignment

Words: 317 - Pages: 2

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

...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

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

...Chapter 5 Exercise 4 A large company must hire a new president. The Board of Directors prepares a list of five candidates, all of whom are equally qualified. Two of these candidates are members of a minority group. To avoid bias in the selection of the candidate, the company decides to select the 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) =......

Words: 1187 - Pages: 5