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1) A sample of 61 small bags of the same brand of candies was selected. Assume...

1) A sample of 61 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is normal. The weight of each bag was then recorded. The mean weight was two ounces with a standard deviation of 0.12 ounces. The population standard deviation is known to be 0.1 ounce.

a) (8 points) Construct a 90% confidence interval for the population mean weight of the candies.

b) (2 points) Explain in a complete sentence what the confidence interval means.

Math   Statistics-And-Probability   
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