An ecologist randomly samples 11 plants of a specific species and measures their heights. He finds that this sample has a mean of 17 cm and a standard deviation of 2 cm. If we assume that the height measurements are normally distributed, find a 90% confidence interval for the mean height of all plants of this species. Give the lower limit and upper limit of the 90% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. Lower Limit___ Upper Limit___
An ecologist randomly samples 11 plants of a specific species and measures their heights. He finds that this sample has a mean of 17 cm and a standard deviation of 2 cm. If we assume that the height measurements are normally distributed, find a 90% confidence interval for the mean height of all plants of this species. Give the lower limit and upper limit of the 90% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. Lower Limit___ Upper Limit___
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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An ecologist randomly samples 11 plants of a specific species and measures their heights. He finds that this sample has a
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place.
Lower Limit___
Upper Limit___
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