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Asked Nov 14, 2019
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6. A program to decrease littering was carried out in the University of Ghana starting in August 2018. The amount of litter in the streets (average kilograms of litter collected per block per day) was measured during July before the program started and then the next July, after the program had been in effect for a year. What statistical test would be most appropriate for testing whether the amount of littering reduced? Explain your answer.

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Expert Answer

Step 1

Paired t-test:

The paired t-test, also known as the “dependent t-test”, is a statistical procedure to test for the difference of means of two groups, when the two groups are somehow related or paired, that is, when the two groups are not independent. This procedure is typically used when two observ...

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