Show transcribed image text 28. A researcher would like to evaluate the effect of a new cold medication on reaction time. It is known that under regular circumstances the distribution of reaction times i normal with μ-200. A sample of n = 9 subjects is obtained. Each person is given the new cold medication and 30 minutes later reaction time is measured for each The average reaction time for this sample is M-210, and the sample SS 1800. Based on these data can the researcher conclude that the cold medication has a significant effect on reaction time? Test with α = .05. (10 points). a. Using symbols, state the hypothesis for this test. b. Locate the critical region for α = .05. c. Calculate the t statistic for this sample. d. What decision should the researcher make? individual.
28. A researcher would like to evaluate the effect of a new cold medication on reaction time. It is known that under regular circumstances the distribution of reaction times i normal with μ-200. A sample of n = 9 subjects is obtained. Each person is given the new cold medication and 30 minutes later reaction time is measured for each The average reaction time for this sample is M-210, and the sample SS 1800. Based on these data can the researcher conclude that the cold medication has a significant effect on reaction time? Test with α = .05. (10 points). a. Using symbols, state the hypothesis for this test. b. Locate the critical region for α = .05. c. Calculate the t statistic for this sample. d. What decision should the researcher make? individual.
