Answered: The average time spent by a car…

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 average time spent by a car salesman each weekend is normally distributed with a mean of 12.5 hr and a SD = 3 hr

What is the 2-decimal % probability that an individual will work less than 11 hr?

Part 2 of 3:

What is the 2-decimal % probability that a worker will work more than 9 hours?

Part 3 of 3:

What is the 2-decimal % probability that the mean of a sample of 33 workers will be below 14?

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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