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Author Question: From a population that is normally distributed with an unknown standard deviation, a sample of 25 ... (Read 111 times)

fahad

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on: Jun 24, 2018
From a population that is normally distributed with an unknown standard deviation, a sample of 25 elements is selected. For the interval estimation of , the proper distribution to use is the _____.
 a. standard normal distribution
  b. z distribution
  c. t distribution with 26 degrees of freedom
  d. t distribution with 24 degrees of freedom

Question 2

Excel's NORM.DIST function can be used to compute _____.
 a. cumulative probabilities for a standard normal z value
  b. the standard normal z value given a cumulative probability
  c. cumulative probabilities for a normally distributed x value
  d. the normally distributed x value given a cumulative probability


amy.lauersdorf90

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

d

Answer to Question 2

c


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fahad

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Reply #2 on: Jun 24, 2018
Correct answers!


amy.lauersdorf90

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Reply #3 on: Jun 24, 2018
Great! Please up vote :D


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