STAT 201 Week 7 Power Point

STAT 201 Week 7 Power Point - Click to edit Master subtitle...

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Unformatted text preview: Click to edit Master subtitle style 9/26/11 STAT201 Recitation Week 7 9/26/11 Typical Questions for sampling Distribution Sample mean (take a sample of , what is the probability that the mean/average will.) Sample proportion ( % of do sth take a sample of , what the probability that ..% or in the sample will..) / x z n - = Parameters u, , n, x- bar Z- chart Prob .? (1 ) p z n - = - Parameters , p, n Z- chart Prob .? 9/26/11 Example on Sample Mean The Baily Hill Bicycle Shop sells mountain bikes and offers a maintenance program to its customers. The managers has found the average repair bill during the maintenance programs first year to be $15.30 with a standard deviation of $7.00. What is the probability a random sample of 40 customers will have a mean repair cost exceeding $16.00?...
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This note was uploaded on 09/26/2011 for the course STAT 201 taught by Professor Drex during the Spring '04 term at Drexel.

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STAT 201 Week 7 Power Point - Click to edit Master subtitle...

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