A survey by American Express Spending reported that the average amount spent on a wedding gift for a close family member is $166. Based on a random sample of 45 people who purchased wedding gifts for close family members, a 95% confidence interval for the mean amount spent was found to be $(149.08, 171.92) Select the best interpretation. The interval contains $166, there is evidence supporting the claim by American Express Spending. The interval is biased because it only sampled 45 people, and is not 100% confident. The interval does not contain $166, the report by American Express Spending is not valid.

A survey by American Express Spending reported that the average amount spent on a wedding gift for a close family member is $166. Based on a random sample of 45 people who purchased wedding gifts for close family members, a 95% confidence interval for the mean amount spent was found to be $(149.08, 171.92) Select the best interpretation. The interval contains $166, there is evidence supporting the claim by American Express Spending. The interval is biased because it only sampled 45 people, and is not 100% confident. The interval does not contain $166, the report by American Express Spending is not valid.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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