statistics

Do athletes and non-athletes differ significantly in how much anger they express?

Do the genders differ significantly in Anger Expression Index?

Is the effect of sports participation significantly different for the two genders?

Illowsky et al.

Chapter 13

The resultant p-value is 0.47. It is considerably larger than α = 0.05.

Therefore, there is not enough evidence to warrant rejection of the null hypothesis that the mean times different ethnic groups eat out are the same.

Again, looking at the means compared to their standard deviations, all of them could easily be about 4.5789, the grand mean in this problem.

NOTE: The df between groups is 3 = (4-1). The df within the groups is 15 because we subtract 1 from the number of samples in each group and add the rest.

White = 5 – 1 = 4

Black = 4 – 1 = 3

Hispanic = 5 – 1 = 4

Asian = 5 – 1 = 4

4 + 3 + 4 + 4 = 15