Mathematics, 13.08.2021 02:10, blachaze8729

In one state, the mean time served in prison by convicted burglars is 18.7 months. A researcher would like to perform a hypothesis test to determine whether the mean amount of time served by convicted burglars in her hometown is different from 18.7 months. She takes a random sample of 11 such cases from court files in her home town and finds that x = 21.4 months and ð = 7 months. Use a 5% significance level to perform the test. Assume normally distributed population. Perform critical-value (classical) test. Be sure to identify the null and alternate hypotheses and interpret your results.
a) Hypotheses:
b) Test statistic:
c) Critical-value:
d) Hypothesis test conclusion and interpretation:

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In one state, the mean time served in prison by convicted burglars is 18.7 months. A researcher woul...