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Use a 005 Significance Level and Conduct a Full Hypothesis Test

Question 52

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Use a 0.05 significance level and conduct a full hypothesis test. List the null and alternative hypotheses, the z-score, the P-value, and whether to reject or not reject the null hypothesis. Round z-scores to the nearest tenth.
-A national car insurance company stated that in 1987, the average yearly car insurance cost for a family in the U.S. was $1716. In the same year, a random sample of 32 families in California resulted in a mean cost of $1728
with a standard deviation of $35.50. Test the claim that the average insurance cost for a family in California in 1987 exceeded the national average.

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