Exercise 12-2 Static Consider a multinomial experiment with n = 400 and k - 3. The null hypothesis is not p1 = 0.60, pp = 0.25, and py - 0.15. The observed frequencies resulting from the experiment are: (You may find it useful to reference the appropriate table: chi-square table or Etable) Category 1 Frequency 250 a. Choose the appropriate alternative hypothesis. All population proportions differ from their hypothesized values. At least one of the population proportions differs from its hypothesized value. b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.) Tent Statistic