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Mathematics, 03.08.2019 03:20 demitae8839
In a random sample of 28 families, the average weekly food expense was $95.60 with a standard deviation of $22.50. determine whether a normal distribution or a t-distribution should be used or whether neither of these can be used to construct a confidence interval. assume the distribution of weekly food expenses is normally shaped.
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In a random sample of 28 families, the average weekly food expense was $95.60 with a standard deviat...
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