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13.3 Exercise 33

Avg difficulty 2.5

Are the mean numbers of daily visitors to a ski resort the same for the three types of snow conditions? Suppose that the table shows the results of a study.

Powder Machine Made Hard Packed
1,210 2,107 2,846
1,080 1,149 1,638
1,537 862 2,019
941 1,870 1,178
1,528 2,233
1,382

Assume that all distributions are normal, the four population standard deviations are approximately the same, and the data were collected independently and randomly. Use a level of significance of 0.05.

OpenStax Statistics, 13.3 Facts About the F Distribution, exercise 33

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