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Author Question: Given that a sample of size 32 and a population standard deviation of 0.3, what would be the margin ... (Read 79 times)

NClaborn

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on: Jun 24, 2018
Given that a sample of size 32 and a population standard deviation of 0.3, what would be the margin of error at a 90 level of confidence?
 
  A) 0.9186
  B) 1.018
  C) 0.4452
  D) 0.09

Question 2

An independent variable should be removed to improve the regression model if ________.
 
  A) the correlation coefficient is -1
  B) the R2 value is 1
  C) the t-statistic is lesser than 1
  D) the p-value is greater than 0.05
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
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janieazgirl

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

D

Answer to Question 2

C


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