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Commuting to work: A community survey sampled 1923 people in Colorado and asked them how long it took them to commute to work each day. The sample mean one-way commute time was 24.7 minutes with a standard deviation of 13 minutes. A transportation engineer claims that the mean commute time is less than 25 minutes. Do the data provide convincing evidence that the engineer's claim is true? Use the a-0.10 level of significance and the P-value method with the TI-84 Plus calculator.

Commuting to work: A community survey sampled 1923 people in Colorado and asked them how long it took them to commute to work each day. The sample mean one-way commute time was 24.7 minutes with a standard deviation of 13 minutes. A transportation engineer claims that the mean commute time is less than 25 minutes. Do the data provide convincing evidence that the engineer's claim is true? Use the a-0.10 level of significance and the P-value method with the TI-84 Plus calculator.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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find 1. T value 2. P Value 3. Critical value 4. Reject or not reject 5. State conclusion
Commuting to work: A community survey sampled 1923 people in Colorado and asked them how long it took them to commute to work each day. The sample mean one-way commute time was 24.7 minutes with a standard deviation of 13 minutes. A transportation engineer claims that the mean commute time is less than 25 minutes. Do the data provide convincing evidence that the engineer's claim is true? Use the a=0.10 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 5 (a) State the appropriate null and alternate hypotheses. Họ: | u = 25 H₁: μ> 25 This hypothesis test is a left-tailed Alternate Answer: Hig=25 H₁: μ<25 This hypothesis test is a left-tailed test. Part: 1 / 5 Part 2 of 5 test. (b) Compute the value of the test statistic. Round the answer to two decimal places. X
Transcribed Image Text:Commuting to work: A community survey sampled 1923 people in Colorado and asked them how long it took them to commute to work each day. The sample mean one-way commute time was 24.7 minutes with a standard deviation of 13 minutes. A transportation engineer claims that the mean commute time is less than 25 minutes. Do the data provide convincing evidence that the engineer's claim is true? Use the a=0.10 level of significance and the P-value method with the TI-84 Plus calculator. Part 1 of 5 (a) State the appropriate null and alternate hypotheses. Họ: | u = 25 H₁: μ> 25 This hypothesis test is a left-tailed Alternate Answer: Hig=25 H₁: μ<25 This hypothesis test is a left-tailed test. Part: 1 / 5 Part 2 of 5 test. (b) Compute the value of the test statistic. Round the answer to two decimal places. X
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