The management of a supermarket wants to adopt a new promotional policy of giving free gift to every customer who spends more than a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy is advertised, the expenditure for all customers at this supermarket will be normally distributed with mean 400 £ and a variance of 900 £2. 2) In a sample of 250, find the count that corresponds to the interquartile range. 3) Based on your answer in and without any calculation, if the mean changed to be 500 £, would the probability be the same?
The management of a supermarket wants to adopt a new promotional policy of giving free gift to every customer who spends more than a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy is advertised, the expenditure for all customers at this supermarket will be normally distributed with mean 400 £ and a variance of 900 £2. 2) In a sample of 250, find the count that corresponds to the interquartile range. 3) Based on your answer in and without any calculation, if the mean changed to be 500 £, would the probability be the same?
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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The management of a supermarket wants to adopt a new promotional policy of giving free gift to every customer who spends more than a certain amount per visit at this supermarket. The expectation of the management is that after this promotional policy is advertised, the expenditure for all customers at this supermarket will be
2) In a sample of 250, find the count that corresponds to the
3) Based on your answer in and without any calculation, if the mean changed
to be 500 £, would the probability be the same?
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