and not 7. The measurements of the drying time, in hours, of a certain brand of latex paint follow a normal distribution. SuppoSc 20 mcasurements of the drying timcs are recorded. The sample mean and the standnrd deviation of 20 mcasurenents is 3.77 and 0.946, respec- tively. (a) Construct a 90% confidence interval for the true mcan measurements of the drying times. Assumne that the distribution of the mcasuremCnts of the drying timcs is upproximately normal. (b) Find the 95% confidence into
and not 7. The measurements of the drying time, in hours, of a certain brand of latex paint follow a normal distribution. SuppoSc 20 mcasurements of the drying timcs are recorded. The sample mean and the standnrd deviation of 20 mcasurenents is 3.77 and 0.946, respec- tively. (a) Construct a 90% confidence interval for the true mcan measurements of the drying times. Assumne that the distribution of the mcasuremCnts of the drying timcs is upproximately normal. (b) Find the 95% confidence into
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 25SGR
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