91影视

Data are given on the crash test loads (pounds) classified under two categories: femur and car size.

The significance level is 0.05.

The null hypothesis to test the significance of the interaction effect is

\({H_0}:{\mu _1} = {\mu _2} = {\mu _3}\).

There is no significant effect of the interaction between the factors 鈥榝emur鈥� and 鈥榗ar size鈥� on the crash test loads.

The alternative hypothesis is as follows.

There is a significant effect of the interaction between the factors 鈥榝emur鈥� and 鈥榗ar size鈥� on the crash test loads.

The p-value corresponding to the F-statistic value of 1.7171 (under interaction) is equal to 0.1940.

As the p-value is greater than 0.05, the null hypothesis is failed to be rejected.

Thus, there is no sufficient evidence to conclude that the interaction between 鈥榝emur鈥� and 鈥榗ar size鈥� has a significant effect on crash test loads.

The null hypothesis to test the significance of the effect of the factor 鈥榝emur鈥� is as follows.

There is no significant effect of the factor 鈥榝emur鈥� on the crash test loads.

The alternative hypothesis is as follows.

There is a significant effect of the factor 鈥榝emur鈥� on the crash test loads.

The p-value corresponding to the F-statistic value of 1.3896 (under femur) is equal to 0.2462.

As the p-value is greater than 0.05, the null hypothesis is failed to be rejected.

Thus, there is no sufficient evidence to conclude that the factor 鈥榝emur鈥� has a significant effect on crash test loads.

The null hypothesis to test the significance of the effect of the factor 鈥榗ar size鈥� is as follows.

There is no significant effect of the factor 鈥榗ar size鈥� on the crash test loads.

The alternative hypothesis is as follows.

There is a significant effect of the factor 鈥榗ar size鈥� on the crash test loads.

The p-value corresponding to the F-statistic value of 2.2296 (under femur) is equal to 0.1222.

As the p-value is greater than 0.05, the null hypothesis is failed to reject.

Thus, there is no sufficient evidence to conclude that the factor 鈥榗ar size鈥� has a significant effect on crash test loads.