Course Title: Applied Statistics for managersIt is desired to test HO: µ = 60 against Ha: u = 60, using a = .10. The population inquestion is uniformly distributed with standard deviation 22.5. A random sample of size81 will be drawn from the population.a. Describe the (approximate) sampling distribution of x under the assumption that HO istrue.b. Describe the (approximate) sampling distribution of x under the assumption that thepopulation mean is 55.c. If u were really equal to 55, what is the probability that the hypothesis test would leadthe investigator to commit a Type Il error?d. What is the power of this test for detecting the alternative Ha: u = 55?

Given information: α=0.10μ=60σ=22.5n=81

Answered: Course Title: Applied Statistics for…

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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Solve part a,b and c of practice question #2. Please and thank you.
The grade point averages (GPA) for 12 randomly selected college students are shown on the right. Complete parts (a) through (c) below. 2.4 3.2 2.6 D 1.9 0.8 4.0 Assume the population is normally distributed. 2.2 1.5 3.6 0.5 2.3 3.4 (a) Find the sample mean. X = x= (Round to two decimal places as needed.)
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