D F Suppose that a popular museum is interested in estimating the average age of summer visitors. A random sample of summer 2 visitors is selected. The data is recorded in tab "Age". 3 4 The researchers want to determine a 95% confidence interval around the mean weight of all summer visitors. 6 Required: 7 Determine the following Mean 9 Standard Deviation 10 Standard Error 11 Sample Size 12 t-Value 38.31250 13.41990 2.3723 0 320 2.04O 13 14 Margin of Error without using Confidence.t 2.37230 15 16 Now compute the Margin of Error using Confidence.t 17 18 Upper Bound Confidence Interval 19 Lower Bound Confidence Interval 20 21

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