A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $28 and a standard deviation of $21. Suppose the store had 316 customers this Sunday. a) Estimate the probability that the store's revenues were at least $8,900. b) If, on a typical Sunday, the store serves 316 customers, how much does the store take in on the worst 1% of such days?

A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $28 and a standard deviation of $21. Suppose the store had 316 customers this Sunday. a) Estimate the probability that the store's revenues were at least $8,900. b) If, on a typical Sunday, the store serves 316 customers, how much does the store take in on the worst 1% of such days?

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

A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of

$28 and a standard deviation of $21. Suppose the store had 316 customers this Sunday.

a) Estimate the probability that the store's revenues were at least $8,900.

b) If, on a typical Sunday, the store serves 316 customers, how much does the store take in on the worst 1% of such days?

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