In exercises that call for two-sample procedures, you may use either of the two approximations for the degrees of freedom that we have discussed: the value given by your software or the smaller of and . Be sure to state clearly which approximation you have used.

Question 7.56

7.56 More on counts of seeds.

Refer to the previous exercise.

  1. When would a one-sided alternative hypothesis be appropriate in this setting? Explain.
  2. What alternative hypothesis would we be testing if we halved the -value from the previous exercise?