A local politician running for reelection claims the mean prison time for car thieves is less...
A local politician running for reelection claims the mean prison time for car thieves is less than the required 6 yrs. A sample of 80 convicted car thieves was randomly selected and the mean length of prison time was found to be 5.5 yrs. with a standard deviation of 1.25 yrs. alpha=0.05
State the claim mathematically. Is the claim the null or alternative hypothesis?
State your hypotheses.
Determine the test of significance (t-test or z-test) and justify your choice.
State the standardized test statistic.
State the p-value.
State the correct decision of the test.
Interpret the decision in the context of the claim.
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A local politician running for reelection claims the mean prison
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