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Christina wants to examine the impact of 3 different types of lighting on surgeons' attention during surgery. She thinks that the best way to compare
Christina wants to examine the impact of 3 different types of lighting on surgeons' attention during surgery. She thinks that the best way to compare the effects of the different types of lighting is to use 3 Independent samples t-tests, comparing lighting 1 to lighting 2, lighting 1 to lighting 3, and lighting 2 to lighting 3. (i) Is this the correct statistical approach? Write yes or no: (ii) Why or why not? Write the letter of your answer: A. Christina is comparing all pairs of groups using t-tests to come up with the right calculations. B. Performing multiple t-tests on the same data set would result in a high experiment-wise error rate. C. Each t-test would have a .05 risk of a Type II error. D. Christina should be using a two-way ANOVA
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