It is a common belief that more fatal car crashes occur on certain days of the week, such as Friday or Saturday. A sampl

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It is a common belief that more fatal car crashes occur on
certain days of the week, such as Friday or Saturday. A sample of
motor vehicle deaths is randomly selected for a recent year. The
number of fatalities for the different days of the week are listed
below. At the 0.10 significance level, test the claim that
accidents occur with equal frequency on the different days.
Day
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Number of fatalities
31
20
20
22
22
29
26
a) State the hypotheses and identify the claim with the correct
hypothesis.
1.
H0: Accidents occur with equal
frequency (claim)
H1: Accidents do not occur with equal
frequency ( Not claim)
2.
H0: Accidents do not occur with equal
frequency (Not claim)
H1: Accidents occur with equal frequency
( claim)
3.
H0: Accidents do not occur with
equal frequency (claim)
H1: Accidents occur with equal frequency
(Not claim)
b) Find the critical value (s).
1. CV=12.017
2. CV=10.645
3. CV=9.236
c) Compute the test value:
1. Χ²= 4.85
2. Χ²=7.96
3. Χ²= 2.54
d) Make the decision.
1. Reject the null hypothesis.
2.Do not reject the null hypothesis.
e) Summarize the results.
1. There is enough evidence to support the claim.
2.There is not enough evidence to support the claim.