Susan Sanitation chief analyst for the Metro City Trash Department
Susan Sanitation, chief analyst for the Metro City Trash Department, has been asked to evaluate the city’s recycling program. Under this program, 25 trash collection districts are subject to mandatory recycling. Residents in these districts must separate paper, glass, and metals that are collected by separate recycling trucks. If the recycling program is working, therefore, the amount of trash collected in these districts will be lower than the amount collected in the other districts. Data on the program in terms of pounds of trash per household per month are presented below:
Present a hypothesis, a null hypothesis, and evaluate them.
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