The safety director of a large steel mill took samples at random from company records of minor work-related accidents and classified them according to the time the accident took place. Time Number of Accidents Time Number of Accidents 8 up to 9 a.m. 10 1 up to 2 p.m. 11 9 up to 10 a.m. 9 2 up to 3 p.m. 12 10 up to 11 a.m. 12 3 up to 4 p.m. 7 11 up to 12 p.m. 6 4 up to 5 p.m. 11 Click here for the Excel Data File Using the goodness-of-fit test and the 0.10 level of significance, determine whether the accidents are evenly distributed throughout the day. H0: The accidents are evenly distributed throughout the day. H1: The accidents are not evenly distributed throughout the day. a. State the decision rule, using the 0.10 significance level. (Round your answer to 3 decimal places.) b. Compute the value of chi-square. (Round your answer to 3 decimal places.) c. What is your decision regarding H0?
The safety director of a large steel mill took samples at random from company records of minor work-related accidents and classified them according to the time the accident took place.
Time | Number of Accidents | Time | Number of Accidents |
---|---|---|---|
8 up to 9 a.m. | 10 | 1 up to 2 p.m. | 11 |
9 up to 10 a.m. | 9 | 2 up to 3 p.m. | 12 |
10 up to 11 a.m. | 12 | 3 up to 4 p.m. | 7 |
11 up to 12 p.m. | 6 | 4 up to 5 p.m. | 11 |
Click here for the Excel Data File
Using the goodness-of-fit test and the 0.10 level of significance, determine whether the accidents are evenly distributed throughout the day.
H0: The accidents are evenly distributed throughout the day.
H1: The accidents are not evenly distributed throughout the day.
a. State the decision rule, using the 0.10 significance level. (Round your answer to 3 decimal places.)
b. Compute the value of chi-square. (Round your answer to 3 decimal places.)
c. What is your decision regarding H0?
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