Giant Hypermarket began a study of overtime hours among its workers. A sample of 15 workers showed the following overtime hours

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Topic: Statistics Posted 10 months ago

Giant Hypermarket began a study of overtime hours among its workers. A sample of 15 workers showed the following overtime hours

Giant Hypermarket began a study of overtime hours among its workers. A sample of 15 workers showed the following overtime hours last month

13 13 12 15 7 15 5 12
6 7 12 10 9 13 12

a. Compute the mean.
b. Is this a statistic or a parameter? Why?

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Koala Tutor

Jan 23, 2024

Koala Ai Support

a. To compute the mean, you need to sum up all the overtime hours and then divide by the number of workers.

Total overtime hours = 13 + 13 + 12 + 15 + 7 + 15 + 5 + 12 + 6 + 7 + 12 + 10 + 9 + 13 + 12 = 166

Mean = Total overtime hours / Number of workers = 166 / 15 = 11.067

b. This is a statistic because it is calculated from a sample of workers from the Giant Hypermarket, and not the entire population of workers. A parameter, on the other hand, would represent a characteristic of the entire population.

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