Suppose the managers of a customer service hotline record the hold times for all incoming calls. The managers have observed that the mean hold time is 2 min. Most customers are able to reach a representative in less than five minutes, but some have to wait longer. Additionally, the managers have noticed that 12% of all customers who call receive a credit to their account.Identify the distributions related to this data shown in each histogram.The distribution of hold times for 1000 randomly selected customer service callsThe distribution of the sample mean hold time for 1000 random samples of size 50 from the population of all customer service callsThe distribution of the sample variances for 1000 random samples of size 50 from the population of all customer service callsThe distribution of the proportion of calls resulting in a credit to the customer's account for 1000 random samples of size 10 from the population of all customer service callsThe distribution of the proportion of calls resulting in a credit to the customer's account for 1000 random samples of size 50 from the population of all customer service calls Answer Bank250-300-200-a.200-с.150-100-100-50-0-0.00.20.40.61.52.02.53.03.5300-300어250-200-200-b.150-100-100-100.00.10.20.30.4300-200-d.100-1015CountCountCountCountCount

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Answered: The distribution of hold times for 1000…

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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Suppose the managers of a customer service hotline record the hold times for all incoming calls. The managers have observed that the mean hold time is 2 min. Most customers are able to reach a representative in less than five minutes, but some have to wait longer. Additionally, the managers have noticed that 12% of all customers who call receive a credit to their account.

Identify the distributions related to this data shown in each histogram.

The distribution of hold times for 1000 randomly selected customer service calls
The distribution of the sample mean hold time for 1000 random samples of size 50 from the population of all customer service calls
The distribution of the sample variances for 1000 random samples of size 50 from the population of all customer service calls
The distribution of the proportion of calls resulting in a credit to the customer's account for 1000 random samples of size 10 from the population of all customer service calls
The distribution of the proportion of calls resulting in a credit to the customer's account for 1000 random samples of size 50 from the population of all customer service calls

Answer Bank
250-
300-
200-
a.
200-
с.
150-
100-
100-
50-
0-
0.0
0.2
0.4
0.6
1.5
2.0
2.5
3.0
3.5
300-
300어
250-
200-
200-
b.
150-
100-
100-
10
0.0
0.1
0.2
0.3
0.4
300-
200-
d.
100-
10
15
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Count
Count
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