Find the population mean

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While at my job I decided to ask 20 co-workers how often they go to the gym. Here are the results:

9 said they go to the gym four days a week.

5 said they go to the gym two days a week.

4 said they don't go to the gym at all.

2 said they go to the gym three times a week.

Using confidence interval of 95%, find the population mean.

Provide explanation.

Reference no: EM132344102

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