A program to decrease littering was carried out in four cities in California's Central Valley starting in
Question:
Using the .01 level of significance, was there a significant decrease in the amount of litter?
(a) Use the five steps of hypothesis testing.
(b) Sketch the distributions involved.
(c) Explain your answer to someone who understands mean, standard deviation, and variance, but knows nothing else about statistics.
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Related Book For
Statistics For Psychology
ISBN: 9780205258154
6th Edition
Authors: Arthur Aron, Elaine N. Aron, Elliot J. Coups
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