QUESTION 1In a study of women's 100-meter performance of 25 university students, mean time is19.5 seconds with standard deviation of 9.88 seconds were recorded. Construct a 90%confidence interval to estimate the mean.(b) In a random sample of 360 food stores, it was found that 160 of these food stores offersspecial promotions. Construct a 99% confidence interval to estimate the population offood stores that offers promotion.QUESTION 2(a) The company ABC introduce a new drug test method, 350 subjects were tested andresults from 33 subjects were incorrect (either false positive or false negative). Thecompany claims that the incorrect test results will be less than 10%. Test this claim usinga=0.05.(b) A random sample of 16 steel beams has a mean compressive strength of 58400 psi (poundper square inch) and population standard deviation of 652 psi. Using 99% significancelevel, test if the true average compressive strength of steel is 58000 psi.

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QUESTION 1 In a study of women's 100-meter performance of 25 university students, mean time is 19.5 seconds with standard deviation of 9.88 seconds were recorded. Construct a 90% confidence interval to estimate the mean. (b) In a random sample of 360 food stores, it was found that 160 of these food stores offers special promotions. Construct a 99% confidence interval to estimate the population of food stores that offers promotion.

QUESTION 1 In a study of women's 100-meter performance of 25 university students, mean time is 19.5 seconds with standard deviation of 9.88 seconds were recorded. Construct a 90% confidence interval to estimate the mean. (b) In a random sample of 360 food stores, it was found that 160 of these food stores offers special promotions. Construct a 99% confidence interval to estimate the population of food stores that offers promotion.

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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