Answer Happy

77 87 97 107 157 a To build a 84% CI for the mean of the population shown above, you take a random sample of 38 values. What is the Margin of Error, E? Round the Critical Value and your answer to three decimals. Note: of course, if you actually knew that the population distribution was as shown in the graph, you would not need to build a CI for the mean since it's right there in the graph. But you might use the CI to determine if perhaps the population mean has changed. Submit Question 117 X 127 137 147
Given that = 22.1 and E= 4.9, build a Cl for u. Enter your answer as an ordered pair, like this: If the CI is a < < b then enter (a,b). Note: You must include the parentheses or you will get marked wrong. Submit Question
Given that = 24.4 and E= 4.5, build a Cl for u. Enter your answer as an ordered pair, like this: If the CI is a < < b then enter (a,b). Note: You must include the parentheses or you will get marked wrong. Submit Question