An airline company recently boasted about its 85% customer satisfaction rate.A corporate watchdog group believes that this percentage is greatly exaggerated, and the real percentageof satisfied customers is lower than 85%. The group randomly surveyed 897 recent customers of this airlineand found that only 723 reported being satisfied with the airline.Using a = 0.05, test the hypothesis that the proportion of satisfied customers of this airline is less than85%. Use the critical value method.State the null and alternative hypothesis for this test.Ho: ? VH₁:? VDetermine if this test is left-tailed, right-tailed, or two-tailed.Otwo-tailedOright-tailedO left-tailedShould the standard normal (2) distribution or Student's (t) distribution be used for this test?The standard normal (2) distribution should be usedThe Student's t distribution should be usedDetermine the critical value(s) for this hypothesis test. Round the solution(s) to two decimal places. Ifustad lietthan ang critinst uslun ministr matar the colutions in Cam75°FPartly cloudy O The standard normal (z) distribution should be usedO The Student's t distribution should be usedDetermine the critical value(s) for this hypothesis test. Round the solution (s) to two decimal places. Ifmore than one critical value exists, enter the solutions using a comma-separated list.Determine the test statistic. Round the solution to two decimal places.Determine the appropriate conclusion for this hypothesis test.O The sample data provide sufficient evidence to reject the null hypothesis that the proportion of allcustomers of this airline that are satisfied is 0.85 and thus we conclude that the proportion of allcustomers of this airline that are satisfied is likely less than 0.85.The sample data do not provide sufficient evidence to reject the alternative hypothesis that theproportion of all customers of this airline that are satisfied is less than 0.85 and thus we concludethat the proportion of all customers of this airline that are satisfied is likely less than 0.85.O The sample data do not provide sufficient evidence to reject the null hypothesis that the proportionof all customers of this airline that are satisfied is 0.85 and thus we conclude that the proportion ofall customers of this airline that are satisfied is likely 0.85.The sample data provide sufficient evidence to reject the alternative hypothesis that the proportionof all customers of this airline that are satisfied is less than 0.85 and thus we conclude that theproportion of all customers of this airline that are satisfied is likely 0.85.75°FPartly cloudy

Given,n=897x=723p^=xnp^=723897=0.806α=0.05

Answered: An airline company recently boasted…

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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