You are asked to determine whether or not brunette students

Reference no: EM13606602

You are asked to determine whether or not brunette students have a higher IQ score than other students. To do so, you administer an IQ test to a random sample of 300 brunette students. It is known that the national average IQ score of students is 100. Your sample produces an average IQ score of 101, with a standard deviation of 12 points. The level of significance is a = .05.

1. What is the most likely null hypothesis?

A. u =100

B. u?100

C. u>100

D. u<100

2. What is the most likely alternative/research hypothesis?

A. u =100

B. u?100

C. u>100

D. u<100

3. What is the standard error?

4. What is the critical test score?

5. What is the test statistic?

Reference no: EM13606602

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