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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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The table shown with this question counts the number of calls that arrive at a telephone help desk during the hours of 1 to 3 p.m. on 5 weekdays. The company uses the same number of employees to staff the center for each of these days. Test the null hypothesis that the calls are uniformly distributed over these days, agreeing with the staffing policy.

(a) Find the degrees of freedom of

χ2.

(b) Find the expected number of calls on a Friday, if

holds.

χ2

for testing

H0.

(d) Find the p-value for testing

H0.

# Calls
Monday	220
Tuesday	205
Wednesday	200
Thursday	195
Friday	180

Expert Solution

Step 1

given

the number of calls that arrive at a telephone help desk during the hours of 1 to 3 p.m. on 5 weekdays

the null hypothesis that the calls are uniformly distributed over these days,

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