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Constructing Confidence Intervals For Stats Students

A sample of 144 cans of coffee showed an average weight of 16 ounces. The standard deviation of the population is known to be 1.4 ounces.

a. Construct a 68.26% confidence interval for the mean of the population.
b. Construct a 97% confidence interval for the mean of the population.

Solution Preview

Confidence interval = mean +/- z*(SD/square root n)

Where z is the z-score (use an Area Under Normal Curve table), SD is the standard ...

Solution Summary

Included are two completely worked through solutions for constructing confidence intervals related to a specifc scenario.

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