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Home Q & A Board Science-Related Homework Help Mathematics
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Theleeman Theleeman
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6 years ago
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.
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tdubb1992tdubb1992
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6 years ago
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Theleeman Author
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6 years ago
Helped a lot
jodie1
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Yesterday
Just got PERFECT on my quiz
Lourd Jenkins
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2 hours ago
Brilliant ツ
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