[Statistics] How do you solve this? 7 b) Suppose that X₁, X2,X24 are a random sample from a Normal distributionN(μ, o2), where both µ and o² are unknown. Using this sample, we wish to test Ho0² = 10 against Ha: o² < 10 using the rejection region RR = {S²: S² < c}. Determinethe value of c that will make the test have power 0.9 when o² = 2. 7 a) Suppose that X₁, X₂, X24 are a random sample from a Normal distributionN(μ, o2), where both μ and o2 are unknown. Using this sample, we wish to test Ho :0²: = 10 against H₁ : 0² < 10 using the rejection region RR = {S² : S² < c}. Determinethe value of c that will make the test have significance level a = 0.05.

Let X1, X2,......X24 be a random sample from a normal distribution where μ and σ2 are unknown. Null…

Answered: 7 a) Suppose that X₁, X2, ...X24 are 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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1)Remove the four potential outliers of 0, 0, 8, and 20, and then obtain a new histogram without the outliers. Does the data appear to be normally distributed now? 2)Assuming that the four potential outliers of 0, 0, 8, and 20 are not recording errors, repeat the hypothesis test from part (c) (again setting up the hypothesis test and using either the critical value or p-value approach), and compare your results with that obtained in (c). Did you make a different conclusion? 3)Imagine you know have to make a recommendation/conclusion to the company that hired you: Assuming that the four potential outlies are not recording errors, and looking at the two results above, would you recommend using the first test with the outliers or the second test with the outliers removed? There is no right or wrong answer here, I am interested in what you think and your reasoning.
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