. The customer service center in a large New York department store has determined that the amount of time spend with a customer about a complaint is normally distributed, with a mean of 9.3 minutes and a standard deviation of 2.5 minutes. What is the probability that for a randomly chosen customer complaint, the amount of time spent resolving the complaint will be: c. Between 8 and 15 minutes?

. The customer service center in a large New York department store has determined that the amount of time spend with a customer about a complaint is normally distributed, with a mean of 9.3 minutes and a standard deviation of 2.5 minutes. What is the probability that for a randomly chosen customer complaint, the amount of time spent resolving the complaint will be: c. Between 8 and 15 minutes?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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Question

4. The customer service center in a large New York department store has determined that the
amount of time spend with a customer about a complaint is normally distributed, with a mean
of 9.3 minutes and a standard deviation of 2.5 minutes. What is the probability that for a
randomly chosen customer complaint, the amount of time spent resolving the complaint will
be:

c. Between 8 and 15 minutes?

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.

Expert Solution