**Question 7**A sample of 36 is taken from a population that is normally distributed with mean 15 and standard deviation 3. What is the probability that the sample mean will be more than 15.9?- A. 0.6268- B. 0.9378- C. 0.0262- D. 0.6457- E. 0.3732**Question 8**A simple random sample of 5 observations from a normal distribution was taken, and the following values were obtained: {12, 15, 15, 17, 21}. A 90% confidence interval for the mean is- A. (13.553, 18.447)- B. (14.378, 17.622)

Given that: X is normal Distributed with mean µ = 15.0 and standard deviation σ = 3.0 By using…

Answered: A sample of 36 is taken from 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 sample of 36 is taken from a population that is normally distributed with mean 15 and standard deviation 3. What is the probability that the sample mean will be more than 15.97? O A. 0.6268 O B. 0.9378 OC.0.0262 O D. 0.6457 O E. 0.3732