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14. A random sample of 61 Basic Statistics students were asked what they thought of statistics on a scale of 0 (very stupid) to 100

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14. A random sample of 61 Basic Statistics students were asked what they thought of statistics on a scale of 0 (very stupid) to 100 (very nice). Interestingly, students seem to find statistics quite nice: the sample mean equals 83. The sample standard deviation equals 7. We know that the standard deviation in the population (all BS students) is 8. Calculate the 90% confidence interval. (81.53, 84.47) . (81.24, 84.76) . (81.32, 84.68) . (80.99, 85.01)

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