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19 March, 05:40

Shoppers at a mall have a mean weight of 70 kg with a standard deviation of 10 kg. An elevator at the mall holds a maximum of 6 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 shoppers and calculate the mean weight of the shoppers in each sample. Calculate the mean of the sampling distribution of x-bar.

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  1. 19 March, 05:48
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    70kg = x-bar

    Step-by-step explanation:

    μ (mean of pop.) = x-bar (mean of sample)

    70 = x-bar
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