Question: The weights of four randomly and independently selected bags of

The weights of four randomly and independently selected bags of potatoes labeled 20 pounds were found to be 21.0, 21.5, 20.5, and 21.2 pounds. Assume Normality.
a. Find a 95% confidence interval for the mean weight of all bags of potatoes.
b. Does the interval capture 20.0 pounds? Is there enough evidence to reject a mean weight of 20 pounds?



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  • CreatedJuly 16, 2015
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