There is a popular lottery in which a ticket is called a scratcher. You are an auditor and want to estimate the population proportion of all winning scratchers, soyou select a random sample of 25 scratchers.Follow the steps below to construct a 90% confidence interval for the population proportion of all winning scratchers. (If necessary, consult a list of formulas.)(a) Click on "Take Sample" to see the results from the random sample.Take SampleSample size:Point estimate:Winning scratcherLosing scratcherCritical value:Number1114Enter the values of the sample size, the point estimate of the population proportion, and the critical value you need for your 90% confidenceinterval. (Choose the correct critical value from the table of critical values provided.) When you are done, select "Compute".Standard error:ProportionMargin of error:0.440.56XConfidence level3Criticalvalue (b)0Critical value:0Compute0.000Margin of error:0.00090% confidence interval:Confidence level90% confidence interval:99%95%90%Based on your sample, enter the lower and upper limits to graph the 90% confidence interval for the population proportion of all winning scratchers.Criticalvalue20.005=2.576X= 1.960²0.0250.050 1.645Ś1.0001.000

Given that, the confidence level is 90%.

Answered: There is a popular lottery in which a…

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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