The weight of heavy bottles follows the normal distribution with the mean of 32kg and the standard deviation of 5kg     A)15 heavy bottles have been found, the mean weight of that 15 heavy bottles, X_15, is measured. Find the probability that X_15 lies between 31.5kg to 32.8kg. B) Z heavy bottles have been found, the mean weight of that Z bottles, X_n, is measured. Find the smallest value of Z so that P(31.8

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The weight of heavy bottles follows the normal distribution with the mean of 32kg and the standard deviation of 5kg

 

 

A)15 heavy bottles have been found, the mean weight of that 15 heavy bottles, X_15, is measured. Find the probability that X_15 lies between 31.5kg to 32.8kg.

B) Z heavy bottles have been found, the mean weight of that Z bottles, X_n, is measured. Find the smallest value of Z so that P(31.8<X_n<32.2)≥99

 

X_15 is the first number shown in the photo

X_n is the second number 

15
5/p
Xn,i
Transcribed Image Text:15 5/p Xn,i
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