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Unformatted text preview: (c) Cannot tell whether to accept or reject at the 98% conﬁdence level. Clearly indicate WHY you chose the answer you did. (3 pts) 3. The mean response time to a stimulus for rats not injected with a drug is 1 . 2 seconds. A research neurologist wishes to test whether the mean response time for injected rats diFers from 1 . 2 and has performed a test of the hypotheses H o : μ = 1 . 2 H a : μ 6 = 1 . 2 based on a sample of size n = 80. We did all of the calculations and obtained the value of the test statistic to be z =-1 . 83. (a) What is the attained signiﬁcance level (the p-value) associated with our test? (3 pts) (b) If we were interested in performing an α = . 05 level test, what is the appropriate conclusion? WHY? Base your answer on the answer that you obtained in part (a). (3 pts) (c) IN TERMS O± THIS PROBLEM, describe a Type I error. (3 pts) 2...
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