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Appliance Magazine provided estimates of the life expectancy of electrical appliances.A sample of 10 VCRs shows the useful life in years. 6.5,8.0,6.2,7.4,7.0,8.4,9.5,4.6,5.0, 7.4 1.What is

Appliance Magazine provided estimates of the life expectancy of electrical appliances.A sample of 10 VCRs shows the useful life in years.

6.5,8.0,6.2,7.4,7.0,8.4,9.5,4.6,5.0, 7.4

1.What is the point estimate of the population mean life expectancy for VCR's?

2.What is the point estimate of the population standard deviation for life expectancy of VCR's?

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