2. According to data released by the North Carolina Department of Health & Human Services,1.795% of NC African Americans who contracted COVID-19 did not survive. Of NC Caucasianswho contracted the virus, 1.469% passed away. The Mecklenburg Health Department collected anSRS of 600 African Americans and another SRS of 700 Caucasians who had all been infected. LetP1 = the sample death rate of African Americans and p, = the sample death rate of Caucasians.%3D%3D[Data collected from publicly available reports at covid19.nchhs.gov as of 1/3/21]A. Describe the shape of the sampling distribution of p1 – p2 Justify your answer.B. Find the mean and standard deviation of the sampling distribution of p1 - P2. Interpretthe standard deviation and be sure to check any relevant conditions.C. What is P(p1 – P2 > 0)?D. Interpret your answer to part C in context.

Let P^1 = The sample death rate of African Americans P2^ = The sample death rate of Caucasians…

2. According to data released by the North Carolina Department of Health & Human Services, 1.795% of NC African Americans who contracted COVID-19 did not survive. Of NC Caucasians who contracted the virus, 1.469% passed away. The Mecklenburg Health Department collected an SRS of 600 African Americans and another SRS of 700 Caucasians who had all been infected. Let = the sample death rate of African Americans and n, = the sample death rate of Caucasians. %3D [Data collected from publicly available reports at covid19.nchhs.gov as of 1/3/21] A. Describe the shape of the sampling distribution of î1 – 22 · Justify your answer. B. Find the mean and standard deviation of the sampling distribution of p1 - P2. Interpret the standard deviation and be sure to check any relevant conditions. C. What is P(p - P2 > 0)? D. Interpret your answer to part C in context.

2. According to data released by the North Carolina Department of Health & Human Services, 1.795% of NC African Americans who contracted COVID-19 did not survive. Of NC Caucasians who contracted the virus, 1.469% passed away. The Mecklenburg Health Department collected an SRS of 600 African Americans and another SRS of 700 Caucasians who had all been infected. Let = the sample death rate of African Americans and n, = the sample death rate of Caucasians. %3D [Data collected from publicly available reports at covid19.nchhs.gov as of 1/3/21] A. Describe the shape of the sampling distribution of î1 – 22 · Justify your answer. B. Find the mean and standard deviation of the sampling distribution of p1 - P2. Interpret the standard deviation and be sure to check any relevant conditions. C. What is P(p - P2 > 0)? D. Interpret your answer to part C in context.

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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The U.S. Energy Information Administration claimed that U.S. residential customers used an average of 10,069 kilowatt hours (kWh) of electricity this year. A local power company believes that residents in their area use more electricity on average than EIA's reported average. To test their claim, the company chooses a random sample of 171 of their customers and calculates that these customers used an average of 10,461 kWh of electricity last year. Assuming that the population standard deviation is 2973 kWh, is there sufficient evidence to support the power company's claim at the 0.01 level of significance? Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
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