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Suppose thatyouareconstructingaconfidenceintervalfor.Asampleistakenfromapopulationwithanearlynormaldistributionandthesamplemeanandsamplestandarddeviationarecalculated.Findtheappropriatet-valueforeachofthefollowing. a. A 90% confidence interval based on n = 25. b. A 95% confidence interval based on n = 25. c. A 99%
Suppose thatyouareconstructingaconfidenceintervalfor.Asampleistakenfromapopulationwithanearlynormaldistributionandthesamplemeanandsamplestandarddeviationarecalculated.Findtheappropriatet-valueforeachofthefollowing.
a. A 90% confidence interval based on n = 25.
b. A 95% confidence interval based on n = 25.
c. A 99% confidence interval based on n = 25.
d. As the level of confidence increases, how will the resulting confidence interval be affected?
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