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A random sample of n = 144 scores is selected from a population whose mean = 230 and standard deviation = 15. What is the probability that the sample's mean will be below M = 228? (Please input answer as a probability with four decimal places).

A random sample of n = 144 scores is selected from a population whose mean = 230 and standard deviation = 15. What is the probability that the sample's mean will be below M = 228? (Please input answer as a probability with four decimal places).

MATLAB: An Introduction with Applications
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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**Question 16** “A population of scores is normally distributed and has a mean = 172 with standard deviation = 34. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 80 and X = 156? (Please input answer as a probability with four decimal places).” **Question 17** A sample is obtained from a population whose mean = 100 and standard deviation = 10. Which of the following samples would produce the most extreme z-score? - A sample of n = 30 scores with M = 90 - A sample of n = 10 scores with M = 250 - A sample of n = 10 scores with M = 90 - A sample of n = 30 scores with M = 90 - A sample of n = 30 scores with M = 250 **Question 18** A random sample of n = 144 scores is selected from a population whose mean = 230 and standard deviation = 15. What is the probability that the sample's mean will be below M = 228? (Please input answer as a probability with four decimal places). **Question 19** (Note: The image does not provide the content for this question.)
Transcribed Image Text:**Question 16** “A population of scores is normally distributed and has a mean = 172 with standard deviation = 34. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 80 and X = 156? (Please input answer as a probability with four decimal places).” **Question 17** A sample is obtained from a population whose mean = 100 and standard deviation = 10. Which of the following samples would produce the most extreme z-score? - A sample of n = 30 scores with M = 90 - A sample of n = 10 scores with M = 250 - A sample of n = 10 scores with M = 90 - A sample of n = 30 scores with M = 90 - A sample of n = 30 scores with M = 250 **Question 18** A random sample of n = 144 scores is selected from a population whose mean = 230 and standard deviation = 15. What is the probability that the sample's mean will be below M = 228? (Please input answer as a probability with four decimal places). **Question 19** (Note: The image does not provide the content for this question.)
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