A college football coach started practice one Saturday by drawing the names of 10 players out of a hat and asked them to do as many burpees as they could. The 10 randomly selected players averaged 15 burpees per person with a standard deviation of 9 burpees. Suppose the distribution of the population of number of burpees that can be done is approximately normal. If we would like to capture the population mean with 95% confidence the margin of error would be _____. O 3.250 ($\frac{15}{\sqrt{10}}$) O 1.960 ($\frac{9}{\sqrt{10}}$) O 2.262 ($\frac{9}{\sqrt{10}}$) O 2.125 ($\frac{15}{\sqrt{10}}$)
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Since the sample size is small (n < 30) and the population standard deviation is unknown (we have the sample standard deviation), and the problem states that the population distribution is approximately normal, we should use the t-distribution to calculate the Show more…
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