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Author Question: Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the relative ... (Read 165 times)

olgavictoria

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on: Jun 24, 2018
Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the relative frequency method for computing probability is used, the probability that the next customer will purchase a computer is _____.
 a. .25
  b. .50
  c. 1
  d. .75

Question 2

Computer Services, Inc wants to determine a confidence interval for the average CPU time of their teleprocessing transactions. A sample of 64 transactions yielded a mean of 6 seconds with a standard deviation of .8 seconds. Determine a 98 confidence interval for the average CPU time of all the teleprocessing transactions.


makaylafy

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

a

Answer to Question 2

5.761 to 6.239 seconds (rounded)


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