Suppose a principal cdaims that the mean test score at her school is greater tha

Question

Suppose a principal cdaims that the mean test score at her school is greater than the national average. She performs a hypothesis test and finds the test statistic to be t-1.77 and she knows the criticall value for this test to be t-198. What can she condlude? O A. There is sufficient evidence to support her ciaim since the lest statistic does not fall in the criticall region O B. There is not sufficient evidence to support her claim since he test statistic does not fall in the critical region. ? ?, Thero is not sufficient ovidence to support her claim sinco he test statistic falls in the crocal region O D. There is sufficient evidenoe to support her dlaim since the test statistic fals in the aritical region

Explanation / Answer

The given test is a right tail test and the critical region is right of the critical value 1.98. Hence, the test statistic value 1.77 fall below the critical value and the correct conclusion is

B: There is not sufficient evidence to support her claim since the test statistic does not fall in the critical region.

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