A pharmaceutical company would like to investigate the response time of a COVID-19 rapid test. The company claims that the response time is 16 minutes. To investigate this claim, the company decided to consider the response time of a random sample of 28 tests. Given: The response times has a normal distribution with a standard deviation of σ=2.The company wishes to test this claim at α=0.01 level of significance.The value of the test statistic is z=−2.14. 1. The company would like to increase the sample size so that the sample mean is within 0.7 minutes of the true mean with 99% confidence. The new required sample size is ?

Given,standard deviation(σ)=2margin of error(E)=0.7α=1-0.99=0.01α2=0.005Z0.005=2.58 (from…

Answered: A pharmaceutical company would like to…

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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A pharmaceutical company would like to investigate the response time of a COVID-19 rapid test. The company claims that the response time is 16 minutes. To investigate this claim, the company decided to consider the response time of a random sample of 28 tests.

Given:

The response times has a normal distribution with a standard deviation of σ=2.
The company wishes to test this claim at α=0.01 level of significance.
The value of the test statistic is z=−2.14.

1. The company would like to increase the sample size so that the sample mean is within 0.7 minutes of the true mean with 99% confidence. The new required sample size is ?

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