Author Question: A random sample of 35 business students required an average of 50.7 minutes to complete a statistics ... (Read 119 times)

fagboi · **on:** Jun 24, 2018

A random sample of 35 business students required an average of 50.7 minutes to complete a statistics exam. Assume that the population standard deviation to complete the exam was 10.4 minutes.

The 99 confidence interval around this sample mean is ________.A) (43.7, 57.7)
B) (48.9, 52.5)
C) (48.1, 53.3)
D) (46.2, 55.2)

Question 2

ClearBags is an online company that sells packaging materials for photographers. Suppose their average order size is 208.19 with a standard deviation of 53.44. A random sample of 35 customer orders has been selected.

The standard error of the mean for this sample is ________.A) 5.11
B) 7.30
C) 9.03
D) 11.35

cat123 · **Reply #1 on:** Jun 24, 2018

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