A paint manufacturer claims that that the average drying time for its new paint is 2 hours. To test that claim thedrying times are obtained for 25 randomly selected cans of paints. Here are the drving time, in minutes.123 109115121130127106120116136131128139110133122133119135109125130 135 120 135a) Construct 90% confidence interval for standard deviation of the drying times.b) Do the data provide sufficient evidence to conclude that the mean drying time is greater than themanufacturer's claim of 120 minutes? Use a= 0.05.

To testH0:μ=120 (minutes)H1:μ>120 Thus, μ0=120.

A paint manufacturer claims that that the average drying time for its new paint is 2 hours. To test that claim the drying times are obtained for 25 randomly selected cans of paints. Here are the drying time, in minutes. 123 109 115 121 130 127 106 120 116 136 110 131 128 139 133 122 133 119 135 109 125 130 135 120 135 a) Construct 90% confidence interval for standard deviation of the drying times. b) Do the data provide sufficient evidence to conclude that the mean drying time is greater than the manufacturer's claim of 120 minutes? Use a= 0.05.

A paint manufacturer claims that that the average drying time for its new paint is 2 hours. To test that claim the drying times are obtained for 25 randomly selected cans of paints. Here are the drying time, in minutes. 123 109 115 121 130 127 106 120 116 136 110 131 128 139 133 122 133 119 135 109 125 130 135 120 135 a) Construct 90% confidence interval for standard deviation of the drying times. b) Do the data provide sufficient evidence to conclude that the mean drying time is greater than the manufacturer's claim of 120 minutes? Use a= 0.05.

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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