A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 769 hours. A randomsample of 29 light bulbs has a mean life of 756 hours. Assume the population is normally distributed and thepopulation standard deviation is 64 hours. At a = 0.02, do you have enough evidence reject the manufacturer'sclaim? Complete parts (a) through (e).(a) Identify the null hypothesis and alternative hypothesis.OA. Ho: <756 (claim)Μ:με 756OD. Ho: #769(claim)H₂H=769(b) Identify the critical value(s). Use technology.Zo =(Use a comma to separate answers as needed. Round to two decimal places as needed.)OB. Ho: H=756Ha: #756 (claim)E. Ho: 2769 (claim)H₂H<769OC. Ho: >769Ha: HS769 (claim)OF. Ho: H≤ 756Ha: >756 (claim)

Answered: Image /qna-images/answer/6409de21-aaae-4858-a4dc-677027b600ed.jpg

Answered: A light bulb manufacturer guarantees…

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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The brain volumes (cm³) of 20 brains have a mean of 1106.7 cm³ and a standard deviation of 126.2 cm³. Use the given standard deviation and the range rule of thumb to identify the limits separating values that are significantly low or significantly high. For such data, would a brain volume of 1309.1 cm³ be significantly high? Significantly low values are (Type an integer or a decimal. cm³ or lower. Do not round.) Significantly high values are cm³ or higher. (Type an integer or a decimal. Do not round.) Is 1309.1 cm³ significantly high? OA. Yes, because it is below the lower limit separating value. B. No, because it is above the upper limit separating value. OC. Yes, because it is between the limits separating values. O D. No, because it is between the limits separating values. OE. Yes, because it is above the upper limit separating value. OF. No, because it is below the lower limit separating value. ~
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