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Author Question: The fact that the sampling distribution of the sample mean can be approximated by a normal ... (Read 198 times)

ts19998

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on: Jun 24, 2018
The fact that the sampling distribution of the sample mean can be approximated by a normal probability distribution whenever the sample size is large is based on the _____.
 a. central limit theorem
  b. fact that there are tables of areas for the normal distribution
  c. assumption that the population has a normal distribution
  d. normal probability theorem

Question 2

Shoppers enter Hamilton Place Mall at an average of 120 per hour.
 a. Define the random variable in words for this experiment.
  b. What is the probability that exactly 5 shoppers will enter the mall between noon and 1:00 P.M.?
  c. What is the probability that exactly 5 shoppers will enter the mall between noon and 12:05 P.M.?
  d. What is the probability that at least 35 shoppers will enter the mall between 5:00 and 5:10 P.M.?


jliusyl

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Reply #1 on: Jun 24, 2018
Answer to Question 1

a

Answer to Question 2

a. x = the number of shoppers entering the mall in a one-hour period
b. .0000
c. .0378
d. .0015


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