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(a) What are the largest and smallest values in Table 2-4? If we want five classes in a frequency table, what should the class width be? (b) Complete the following frequency table.

(a) What are the largest and smallest values in Table 2-4? If we want five classes in a frequency table, what should the class width be? (b) Complete the following frequency table.

MATLAB: An Introduction with Applications
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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Please answer part a and b. Show work! Thank you.
An irate customer called Dollar Day Mail Order Company 40 times during the last two weeks to see why his order had not arrived. Each time he called, he recorded the length of time he was put "on hold" before being allowed to talk to a customer service representative. See Table 2-4. (a) What are the largest and smallest values in Table 2-4? If we want five classes in a frequency table, what should the class width be? (b) Complete the following frequency table. TABLE 2-5 Time on Hold Class Limits Lower-Upper Tally Frequency 1-3 4- -9 Midpoint (c) Recall that the class boundary is halfway between the upper limit of one class and the lower limit of the next. Use this fact to find the class boundaries in Table 2-7 and to complete the partial histogram in Figure 2-4. TABLE 2-4 1 5 5 5 6 7 7 8 11 3 7 Length of Time on Hold, in Minutes 4 8 7 6 5 8 9 9 6 5 12 13 9 10 9 8 6 6 2 8 8 = 2.4 = 3 7-9 10-12 13-15 7 6 4 9 The largest value is 13; the smallest value is 1. The class width is 13-1 5 TABLE 2-6 Completion of Table 2-5 Class Limits Lower-Upper 1-3 4-6 Tally ||| IN MAN DANN MI 5 10 6 9 Note: Increase the value to 3. Frequency 3 15 17 4 1 Midpoint 2 5 8 11 14 Continued
Transcribed Image Text:An irate customer called Dollar Day Mail Order Company 40 times during the last two weeks to see why his order had not arrived. Each time he called, he recorded the length of time he was put "on hold" before being allowed to talk to a customer service representative. See Table 2-4. (a) What are the largest and smallest values in Table 2-4? If we want five classes in a frequency table, what should the class width be? (b) Complete the following frequency table. TABLE 2-5 Time on Hold Class Limits Lower-Upper Tally Frequency 1-3 4- -9 Midpoint (c) Recall that the class boundary is halfway between the upper limit of one class and the lower limit of the next. Use this fact to find the class boundaries in Table 2-7 and to complete the partial histogram in Figure 2-4. TABLE 2-4 1 5 5 5 6 7 7 8 11 3 7 Length of Time on Hold, in Minutes 4 8 7 6 5 8 9 9 6 5 12 13 9 10 9 8 6 6 2 8 8 = 2.4 = 3 7-9 10-12 13-15 7 6 4 9 The largest value is 13; the smallest value is 1. The class width is 13-1 5 TABLE 2-6 Completion of Table 2-5 Class Limits Lower-Upper 1-3 4-6 Tally ||| IN MAN DANN MI 5 10 6 9 Note: Increase the value to 3. Frequency 3 15 17 4 1 Midpoint 2 5 8 11 14 Continued
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