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7. The weight of a bull moose is normally distributed with a mean of 1170 lb and a standard deviation of 165 lb. (a) On what interval do we find the middle 75% of all bulls' weights?

7. The weight of a bull moose is normally distributed with a mean of 1170 lb and a standard deviation of 165 lb. (a) On what interval do we find the middle 75% of all bulls' weights?

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 7 Please solve the problem with simple probability rules (no Excel)
7. The weight of a bull moose is normally distributed with a mean of 1170 lb and a standard deviation of 165 lb. (a) On what interval do we find the middle 75% of all bulls' weights? (b) In a random sample of 20 bulls, what is the probability their mean weight is more than 1270 lb?
Transcribed Image Text:7. The weight of a bull moose is normally distributed with a mean of 1170 lb and a standard deviation of 165 lb. (a) On what interval do we find the middle 75% of all bulls' weights? (b) In a random sample of 20 bulls, what is the probability their mean weight is more than 1270 lb?
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