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on: 1 pt Hep O Tues Thurs 172 Wed 207 r\'«O(Round to three decimal places as nee

ID: 3322826 • Letter: O

Question

on: 1 pt Hep O Tues Thurs 172 Wed 207 r'«O(Round to three decimal places as needed) Pvaue (Round to four decimal places as needed) What is the conclusion for this hypothesis test? OA. Reject Ho There is insuficient evidence to warrant rejection of the claim that the different days of the week have the same tequencies of police calls O B. Reject Ho- There is sufficient evidence to warrant rejection of the claim that the different days of the week have the same frequencies of polce call O C. Fail to reject Ho. There is sufficient evidence to warrant rejection of the claim that the diferent days of the week have the same trequencies of police calls O D. Fail to reject Ho, There is insuficient eidence to warrant rejection of the claim that the diferent days of the weok have the same tequencies of police calls O A. Because October has 31 days, two of the days of the week occur more often than the other days of the week O B. Because October has 31 days, one of the days of the week occur more often than the other days of the week O C. Because October has 31 days, each day of the week occurs the same number of times as the other days of the week 0 D. Because October has 31 days, three of the days of the week occur more often than the other days of the week

Explanation / Answer

H0: The different days of the week have the same frequencies of police calls
H1: The different days of the week have not the same frequencies of police calls

The chisquare contribution values are

Test Statistic, X^2: 27.2949

P-Value: 0.0001

Correct answer: option (B)
Correct answer: option (D)

Observed Expected Day Freq (Oi) Probability Freq Ei (Oi-Ei)^2 /Ei Sun 159 205.8571429 10.6656092 Mon 206 205.8571429 9.9138E-05 Tue 222 205.8571429 1.26588678 Wed 240 205.8571429 5.66283335 Thu 172 205.8571429 5.56845445 Fri 207 205.8571429 0.0063448 Sat 235 205.8571429 4.12570635 Total: 1441 1441 27.2949341