Question
Suppose you know the population is normally distributed and that the population standard deviation is 7.5. a. Calculate the margin of error for a confidence
Suppose you know the population is normally distributed and that the population standard deviation is 7.5.
a.Calculate the margin of error for a confidence interval of 90% for a sample size of 3.
Suppose you know the population is normally distributed and that the population standard deviation is 7.28.
a.Calculate the margin of error for a confidence interval of 85% for a sample size of 12.(Round your answer to three decimal places.)
Suppose you know the population is normally distributed and that the population standard deviation is 0.75.
a.Calculate the margin of error for a 90% confidence interval for a sample size of 3.(Round your answer to three decimal places.)
b.Calculate the margin of error for a 90% confidence interval if you increased the sample size to 12.(Round your answer to three decimal places.)
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Intermediate Algebra
Authors: Margaret Lial, John Hornsby, Terry McGinnis
13th Edition
0134895983, 978-0134895987
