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Author Question: Suppose x is a random variable for which a Poisson probability distribution with = 8.7 provides a ... (Read 87 times)

ericka1

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on: Jul 24, 2018
Suppose x is a random variable for which a Poisson probability distribution with  = 8.7 provides a good characterization. Find  for x.
 
  A) 8.7 B) 2.95 C) 4.4 D) 75.69

Question 2

Construct a 90 confidence interval for the population mean, . Assume the population has a normal distribution. In a recent study of 22 eighth graders,
 
  the mean number of hours per week that they played video
  games was 19.6 with a standard deviation of 5.8 hours. Round to the nearest hundredth.
  A) (17.47, 21.73 ) B) (18.63, 20.89 ) C) (5.87, 7.98 ) D) (19.62, 23.12 )


Eazy416

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

A

Answer to Question 2

A


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