Mathematics, 17.12.2019 02:31 rachel8926
Alocal politician, running for reelection, claims that the mean prison time for car thieves is less than the required 4 years. a sample of 80 convicted car thieves was randomly selected, and the mean length of prison time was found to be 3 years and 6 months, with a population standard deviation of 1 year and 3 months.
using a 3% level of significance, test the politician's claim.(a) state the null and alternative hypotheses for the test and calculate the value of the test statistic for this test.(b) determine the critical region(s) for this test and state the conclusion of this test. give a reason for your answer
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