Answered: The table below lists the number of…

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 below lists the number of crimes reported at a police station on each day of the week for the past three months.

Days of the week	number of crimes
monday	21
tuesday	10
wednesday	13
thursday	16
friday	25
saturday	29
sunday	26

1. The null hypothesis for the goodness-of-fit test is that the number of crimes reported at this police station is the same for each day of the week. The expected frequencies for each of the seven days are: Monday: ____ Tuesday: ____ Wednesday: ____ Thursday: _____ Friday: _____ Saturday: _____ Sunday: _____

2. The null hypothesis for the goodness-of-fit test is that the number of crimes reported at this police station is the same for each day of the week. What are the degrees of freedom for this test? __________________________________________

3. The null hypothesis for the goodness-of-fit test is that the number of crimes reported at this police station is the same for each day of the week. The significance level is 10%. What is the critical value of chi-square (3 decimals)? ___________________________

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