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Author Question: Use a 0.05 significance level and conduct a full hypothesis test. List the null and alternative ... (Read 145 times)

skymedlock

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on: Jan 18, 2020
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.
Statistical Reasoning for Everyday Life ¦ Bennett, Briggs, Triola ¦ 5th Edition
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Marked as best answer by skymedlock on Jan 18, 2020

shaquita

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Reply #1 on: Jan 18, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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skymedlock

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Reply 2 on: Jan 18, 2020
Great answer, keep it coming :)

frankwu0507

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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