23 The masses of 1500 ball bearings are normally distributed, with a mean of 22.40g and a standard de of 0.048 g. If 300 random samples of size 36 are drawn from this population, determine the expecte and standard deviation of the sampling distribution of means if the sampling is done (a) with repla

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8.23 The masses of 1500 ball bearings are normally distributed, with a mean of 22.40 g and a standard deviation
of 0.048 g. If 300 random samples of size 36 are drawn from this population, determine the expected mean
and standard deviation of the sampling distribution of means if the sampling is done (a) with replacement
and (b) without replacement.

8.23
The masses of 1500 ball bearings are normally distributed, with a mean of 22.40 g and a standard deviation
of 0.048 g. If 300 random samples of size 36 are drawn from this population, determine the expected mean
and standard deviation of the sampling distribution of means if the sampling is done (a) with replacement
and (b) without replacement.
Transcribed Image Text:8.23 The masses of 1500 ball bearings are normally distributed, with a mean of 22.40 g and a standard deviation of 0.048 g. If 300 random samples of size 36 are drawn from this population, determine the expected mean and standard deviation of the sampling distribution of means if the sampling is done (a) with replacement and (b) without replacement.
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