Chap8Stats

Chap8Stats - Review Assessment: Test Chapter 8 User...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Review Assessment: Test Chapter 8 User Elizabeth S Knowles Submitted 4/20/08 9:47 PM Name Test Chapter 8 Status Completed Score 64 out of 80 points Time Elapsed 0 hours, 44 minutes, and 19 seconds out of 3 hours and 0 minutes allowed. Instructions Question 1 2 out of 2 points Express the null hypothesis H 0 and the alternative hypothesis H 1 in symbolic form. Use the correct symbol (μ, p, σ )for the indicated parameter. The owner of a football team claims that the average attendance at games is over 67,800, and he is therefore justified in moving the team to a city with a larger stadium. Selected Answer: H 0 : μ, the average attendance at games, is equal to 67,800 H 1 : μ, the average attendance at games, is greater than 67,800 Correct Answer: H 0 : μ, the average attendance at games, is equal to 67,800 H 1 : μ, the average attendance at games, is greater than 67,800 Question 2 2 out of 2 points Find the P-value for the indicated hypothesis test. A medical school claims that more than 28% of its students plan to go into general practice. It is found that among a random sample of 130 of the school's students, 32% of them plan to go into general practice. Find the P-value for a test of the school's claim. Selected Answer: 0.1539 Correct Answer: 0.1539 Question 3 0 out of 2 points Determine whether the given conditions justify testing a claim about a population mean μ. The sample size is n = 17, σ is not known, and the original population is normally distributed. Selected Answer: No Correct Answer: Yes Question 4 2 out of 2 points
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. The owner of a football team claims that the average attendance at games is over 727, and he is therefore justified in moving the team to a city with a larger stadium. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. Selected Answer: There is not sufficient evidence to support the claim that the mean attendance is greater than 727. Correct Answer: There is not sufficient evidence to support the claim that the mean attendance is greater than 727. Question 5 2 out of 2 points Determine whether the given conditions justify testing a claim about a population mean μ. The sample size is n = 25, σ = 5.93, and the original population is normally distributed. Selected Answer: Yes Correct Answer: Yes Question 6 2 out of 2 points Find the P-value for the indicated hypothesis test. A nationwide study of American homeowners revealed that 65% have one or more lawn mowers. A lawn equipment manufacturer, located in Omaha, feels the estimate is too low for households in Omaha. Find the for a test of the claim that the proportion with lawn mowers in Omaha is higher than 65%. Among 497 randomly selected homes in Omaha, 340 had one or more lawn mowers. Selected
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/27/2008 for the course MTH 157 taught by Professor Spence during the Spring '08 term at VCCS.

Page1 / 10

Chap8Stats - Review Assessment: Test Chapter 8 User...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online