Priorto2021,theamountspentperhouseholdinBuffalo,NYonpurchasesmade through Amazon.com averaged $250 per month for months outside of the typical Christmas buying season. A report claims that social isolation measures due to the ongoing Coronavirus pandemic have caused that number to increase. A random sample of 56 households in Buffalo shows an average of $267 spent for the month of March. Assuming that the population standard deviation is $43, test at the .05 significance level whether or not the average amount spent on Amazon purchases each month by households in Buffalo has increased.
Priorto2021,theamountspentperhouseholdinBuffalo,NYonpurchasesmade through Amazon.com averaged $250 per month for months outside of the typical Christmas buying season. A report claims that social isolation measures due to the ongoing Coronavirus pandemic have caused that number to increase. A random sample of 56 households in Buffalo shows an average of $267 spent for the month of March. Assuming that the population standard deviation is $43, test at the .05 significance level whether or not the average amount spent on Amazon purchases each month by households in Buffalo has increased.
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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Priorto2021,theamountspentperhouseholdinBuffalo,NYonpurchasesmade through Amazon.com averaged $250 per month for months outside of the typical Christmas buying season. A report claims that social isolation measures due to the ongoing Coronavirus pandemic have caused that number to increase. A random sample of 56 households in Buffalo shows an average of $267 spent for the month of March. Assuming that the population standard deviation is $43, test at the .05 significance level whether or not the average amount spent on Amazon purchases each month by households in Buffalo has increased.
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