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Mathematics, 08.11.2019 20:31 123333333545

In a test of physical fitness, a group of men ages 65 and older from a local retirement community were told to do as many sit-ups as they could. it is known the population mean μ is 20 with σ^x-8. the scores for the men from the retirement community are given below. what is the sample mean?
24 25 10 23 18 29 47 32
19 24 20 28 21 20 27 25

a. 1.25
b. 4.00
c. 0.5
d. 2.00

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