Determine the critical value(s) for a hypothesis test for the difference between two means (population standard deviations known) inder ta defns relection region(s)QuestionWhat is/are the critical value(s) of the z-test statistic for this hypothesis test, where a = 0.01? Usethe appropriate value(s) from the table. Use a comma and a space to separate answers as needed.Zo.10Z0.05zo.025Z0.01Z0.0051.2821.9602.3261.6452.576Provide your answer belowcritical value(s)

Introduction:It is given that the difference between two population means must be tested, when the…

Answered: Determine the critical value(s) for 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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A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A random sample of 22 light bulbs has a mean life of 743 hours. Assume the population is normally distributed and the population standard deviation is 56 hours. At α=0.05, do you have enough evidence to reject the manufacturer's claim? Complete parts (a) through (e) (b) Identify the critical value(s). Use technology. z0=? (Use a comma to separate answers as needed. Round to two decimal places as needed.) c) Identify the standardized test statistic. Use technology. z=nothing (Round to two decimal places as needed.) (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. A.Reject H0. There is not sufficient evidence to reject the claim that mean bulb life is at least 769 hours. B. Reject H0. There is sufficient evidence to reject the claim that mean bulb life is…

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