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Estimates of the life expectancy of electrical appliances

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Reference no: EM132402299

1. 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

What is the point estimate of the population standard deviation for life expectancy of VCR's? (Show to 4 decimal places)

2. 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

5. S2 = _____ ? (Show to 4 decimal places.)

Selected Answer:2.2422

What is an online calculator where I can enter in the data (6.5, 8.0 etc...) and get all the possible answers.

Sampling Distributions calculator

Reference no: EM132402299

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