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Science-Related Homework Help Mathematics Topic started by: Theleeman on Jan 26, 2018



Title: A random sample of 25 observations was selected from a normally distributed population. The average ...
Post by: Theleeman on Jan 26, 2018
A random sample of 25 observations was selected from a normally distributed population. The average in the sample was 84.6 with a variance of 400.
 a. Construct a 90 confidence interval for .
  b. Construct a 99 confidence interval for .
  c. Discuss why the 90 and 99 confidence intervals are different.
  d. What would you expect to happen to the confidence interval in part (a) if the sample size was increased? Be sure to explain your answer.


Title: A random sample of 25 observations was selected from a normally distributed population. The average ...
Post by: tdubb1992 on Jan 26, 2018
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