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Author Question: In order to use the normal distribution for interval estimation of when is known and the sample is ... (Read 73 times)

tsand2

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  • Posts: 520
on: Jun 24, 2018
In order to use the normal distribution for interval estimation of  when  is known and the sample is very small, the population
 a. must be very large
  b. must have a normal distribution
  c. can have any distribution
  d. must have a mean of at least 1

Question 2

In developing an interval estimate, if the population standard deviation is unknown
 a. it is impossible to develop an interval estimate
  b. the standard deviation is arrived at using the range
  c. the sample standard deviation can be used
  d. it is assumed that the population standard deviation is 1


ebe

  • Sr. Member
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  • Posts: 320
Reply #1 on: Jun 24, 2018
Answer to Question 1

B

Answer to Question 2

C


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