Consider a multinomial experiment with n = 250 and k = 4. The null hypothesis to be tested is H0: p1 = p2 = p3 = p4 = 0.25. The observed frequencies resulting from the experiment are (Use Table 3):

Category 1 2 3 4

Frequency 73 45 75 92

a. Choose the appropriate alternative hypothesis.

All population proportions differ from 0.25.

Not all population proportions are equal to 0.25.

b.

Calculate the critical value at the 5% significance level. (Round your answer to 3 decimal places.)

Critical value

c.

Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)

Test statistic

d. What is the conclusion to the hypothesis test?

Do not reject H0 since the value of the test statistic does not exceed the critical value.

Do not reject H0 since the value of the test statistic exceeds the critical value.

Reject H0 since the value of the test statistic does not exceed the critical value.

Reject H0 since the value of the test statistic exceeds the critical value.