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Author Question: Suppose a 95 confidence interval for has been constructed. If it is decided to take a larger sample ... (Read 90 times)

aabwk4

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on: Jun 24, 2018
Suppose a 95 confidence interval for  has been constructed. If it is decided to take a larger sample and to decrease the confidence level of the interval, then the resulting interval width would ________. (Assume that the sample statistics gathered would not change very much for the new sample.)
 
  A) be the same as the current interval width
  B) be unknown until actual sample sizes and reliability levels were determined
  C) be larger than the current interval width
  D) be narrower than the current interval width

Question 2

You were told that the mean score on a statistics exam is 75 with the scores normally distributed. In addition, you know the probability of a score between 55 and 60 is 4.41 and that the probability of a score greater than 90 is 6.68. What is the probability of a score greater than 95?
 
  What will be an ideal response?


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LegendaryAnswers

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

D

Answer to Question 2

2.27 or 0.0227


aabwk4

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


LegendaryAnswers

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


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