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Author Question: A random sample of 35 business students required an average of 50.7 minutes to complete a statistics ... (Read 61 times)

fagboi

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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


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cat123

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fagboi

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)


daiying98

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Reply 3 on: Yesterday
Excellent

 

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