A paint manufacturer wished to compare the drying times of two different types of paint. Independent simple random samples of 11 cans of type A and 9 cans of type B were selected and applied to similar surfaces. The drying times, in hours, were recorded. The summary statistics are as follows. Type A Type B X1 76.9 X2 63.7 $1 4.5 s2 5.1 n1 = 11 n2 9 Construct a 98% confidence interval for the difference between the mean drying time for paint of type A and the mean drying time for paint of type B. Round your answer in 2 decimal places

A paint manufacturer wished to compare the drying times of two different types of paint. Independent simple random samples of 11 cans of type A and 9 cans of type B were selected and applied to similar surfaces. The drying times, in hours, were recorded. The summary statistics are as follows. Type A Type B X1 76.9 X2 63.7 $1 4.5 s2 5.1 n1 = 11 n2 9 Construct a 98% confidence interval for the difference between the mean drying time for paint of type A and the mean drying time for paint of type B. Round your answer in 2 decimal places

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Description: A paint manufacturer wished to compare the drying times of two different types of paint.Independent simple random samples of 11 cans of type A and 9 cans of type B were selectedand applied to similar surfaces. The drying times, in hours, were record

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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