Confidence interval for the mean amount
The amounts (in ounces) of juice in eight randomly selected juice bottles are:
15.2 15.7 15.9 15.9 15.1 15.5 15.7 15.3
Construct a 98% confidence interval for the mean amount of juice in all such bottles.
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It is estimated that the refrigerator removes 3300 kJ/hr heat from the food, and rejects 4800 kJ/hr heat to the ambient, which is at 30 ºC. Determine the power input to the refrigerator in kW and the COP of the refrigerator.
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A diligent auditor studied records of 16 randomly chosen triple hernia operations at Hackmore Hospital and found a mean hospital stay of 40 hours with a standard deviation of 20 hours. "Aha!" she cried, "the average stay exceeds the guideline." Th
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