The amount of pollutants that are found in waterways near large cities is normally distributed with mean 8.8 ppm and standard deviation 1.4 ppm. 37 randomly selected large cities are studied. Round all answers to 4 decimal places where possible.
The amount of pollutants that are found in waterways near large cities is normally distributed with mean 8.8 ppm and standard deviation 1.4 ppm. 37 randomly selected large cities are studied. Round all answers to 4 decimal places where possible.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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Step 1: a. Distribution of X:
VIEWStep 2: b. Distribution of X-bar:
VIEWStep 3: c. Probability that one randomly selected city's waterway will have less than 8.3 ppm pollutants:
VIEWStep 4: d. Probability that the average amount of pollutants is less than 8.3 ppm:
VIEWStep 5: e. Assumption of normality
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