Water analysis is performed at 32 points and the pollution level (y) in the water is measured as ppm. The information is as follows. n 32 y average 28 s 7 a)Provide sufficient evidence at alpha 0.05 that the average pollution level is higher than 30 ppm, do the appropriate test. b)Create a 95 percent confidence interval for the average pollution level of the population
Water analysis is performed at 32 points and the pollution level (y) in the water is measured as ppm. The information is as follows. n 32 y average 28 s 7 a)Provide sufficient evidence at alpha 0.05 that the average pollution level is higher than 30 ppm, do the appropriate test. b)Create a 95 percent confidence interval for the average pollution level of the population
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Water analysis is performed at 32 points and the pollution level (y) in the water is measured as ppm. The information is as follows.
n |
32 |
y average |
28 |
s |
7 |
a)Provide sufficient evidence at alpha 0.05 that the average pollution level is higher than 30 ppm, do the appropriate test.
b)Create a 95 percent confidence interval for the average pollution level of the population
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