A states Division of Motor Vehicles (DMV) claims that 60% of teens pass their driving test on the first attempt. An investigative reporter examines a simple random sample of the DMV records for 125 teens; 86 of them passed the test on their first try. Test the DMV’s claim, using α = 0.05. 1. Set up the hypotheses. 2. Calculate the test statistic. 3. Determine the critcal value and draw the rejection region. 4. State and justify the decision using the rejection region method. 5. State the conclusion in terms of the problem. 6. Discuss the validity of your results by checking and addressing all assumptions.
A states Division of Motor Vehicles (DMV) claims that 60% of teens pass their driving test on the first attempt. An investigative reporter examines a simple random sample of the DMV records for 125 teens; 86 of them passed the test on their first try. Test the DMV’s claim, using α = 0.05. 1. Set up the hypotheses. 2. Calculate the test statistic. 3. Determine the critcal value and draw the rejection region. 4. State and justify the decision using the rejection region method. 5. State the conclusion in terms of the problem. 6. Discuss the validity of your results by checking and addressing all assumptions.
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A states Division of Motor Vehicles (DMV) claims that 60% of teens pass their driving test
on the first attempt. An investigative reporter examines a simple random sample of the DMV
records for 125 teens; 86 of them passed the test on their first try. Test the DMV’s claim,
using α = 0.05.
1. Set up the hypotheses.
2. Calculate the test statistic.
3. Determine the critcal value and draw the rejection region.
4. State and justify the decision using the rejection region method.
5. State the conclusion in terms of the problem.
6. Discuss the validity of your results by checking and addressing all assumptions.
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Step 1: Determine the given variables.
VIEWStep 2: Set up the hypotheses.
VIEWStep 3: Find the test statistic.
VIEWStep 4: Find the critical value and draw rejection region.
VIEWStep 5: State and justify the decision. Also interpret the conclusion.
VIEWStep 6: State and check all the asumptions.
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