Answered: The number of customers served at a…

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

The number of customers served at a busy restaurant on Wednesdays follows a Normal distribution with mean 4,362 and standard deviation 251.

Suppose we select a simple random sample of 36 Wednesdays and use it to compute x, the average number of customers served on each of these Wednesdays. What is the probability that the average number of customers served on on these 36 Wednesday exceeds 4,444?

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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