A taxi company claims that its drivers have an average of at least 12.4 years' experience. In a study of 15 taxi drivers, the average experience was 11.2 years. The standard deviation was 2. At a = 0.10, is the number of years' experience of the taxi drivers really less than the taxi company claimed. State the hypotheses and identify the claim.Identify the statistical test to be used. a. Find for the critical value(s). b. Sketch a curve with the rejection and non-rejection region. Computer for the test value. c. Make the decision. Interpret the results.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A taxi company claims that its drivers have an average of at least 12.4 years' experience. In a study
of 15 taxi drivers, the average experience was 11.2 years. The standard deviation was 2. At a =
0.10, is the number of years' experience of the taxi drivers really less than the taxi company
claimed.
State the hypotheses and identify the claim.Identify the statistical test to be used.
a.
Find for the critical value(s).
b. Sketch a curve with the rejection and non-rejection region. Computer for the test value.
c. Make the decision. Interpret the results.
Transcribed Image Text:A taxi company claims that its drivers have an average of at least 12.4 years' experience. In a study of 15 taxi drivers, the average experience was 11.2 years. The standard deviation was 2. At a = 0.10, is the number of years' experience of the taxi drivers really less than the taxi company claimed. State the hypotheses and identify the claim.Identify the statistical test to be used. a. Find for the critical value(s). b. Sketch a curve with the rejection and non-rejection region. Computer for the test value. c. Make the decision. Interpret the results.
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