From previous studies, it is concluded that 90% of phone numbers in a certain city are unlisted. Aresearcher claims that the proportion is smaller than 90% and decides to survey 800 working adults. Testthe researcher's claim at the a = 0.01 significance level.Preliminary:a. Is it safe to assume that n < 0.05 of all subjects in the population?O YesNob. Verify np(1 – p) > 10. Round your answer to one decimal place.пр(1 — р) %3Test the claim:a. The null and alternative hypotheses areΟ Ho: μ= 0.9Ha: µ + 0.9Но: и < 0.9Ha:µ > 0.9O Ho:p 2 0.9Ha:p < 0.9Ho:p = 0.9Ha:p + 0.9Ho:µ > 0.9Ha:µ < 0.9O Ho:p < 0.9H.:p > 0.9b. The test isSelect an answerc. Based on the sample of 800 people, 81% phone numbers in a certain city are unlisted. What is thetest statistic? Round your answer to two decimal places.? Vd. What is the p-value? Round your answer to four decimal places.e. Make a decision.Do not reject the null hypothesis.O Reject the null hypothesis.f. Make a conclusion.O There is sufficient evidence that the proportion of people who phone numbers in a certaincity are unlisted is smaller than 90% at the a = 0.01 significance level.There is not sufficient evidence that the proportion of people who phone numbers in acertain city are unlisted is smaller than 90% at the a0.01 significance level.

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From previous studies, it is concluded that 90% of phone numbers in a certain city are unlisted. A researcher claims that the proportion is smaller than 90% and decides to survey 800 working adults. the researcher's claim at the a = 0.01 significance level. Preliminary: a. Is it safe to assume that n< 0.05 of all subjects in the population? Yes No

From previous studies, it is concluded that 90% of phone numbers in a certain city are unlisted. A researcher claims that the proportion is smaller than 90% and decides to survey 800 working adults. the researcher's claim at the a = 0.01 significance level. Preliminary: a. Is it safe to assume that n< 0.05 of all subjects in the population? Yes No

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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