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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. Туре A| Туре В x1 = 75.3 x2 = 63.2 $1 = 2.5 $2= 5.1 n₁ = 11 n2 = 9 Determine a 98% confidence interval for the difference, μ₁ - μ2, between the mean drying time for type A and the mean drying time for type B.

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. Туре A| Туре В x1 = 75.3 x2 = 63.2 $1 = 2.5 $2= 5.1 n₁ = 11 n2 = 9 Determine a 98% confidence interval for the difference, μ₁ - μ2, between the mean drying time for type A and the mean drying time for type B.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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2) 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 = 75.3 x2 = 63.2 $12.5 $25.1 n1 = 11 n2 = 9 Determine a 98% confidence interval for the difference, μ₁ - μ2, between the mean drying time for type A and the mean drying time for type B.
Transcribed Image Text:2) 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 = 75.3 x2 = 63.2 $12.5 $25.1 n1 = 11 n2 = 9 Determine a 98% confidence interval for the difference, μ₁ - μ2, between the mean drying time for type A and the mean drying time for type B.
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