You're trying to get an interval estimate (a Conf. Interval) for the average temperature of patients...
You're trying to get an interval estimate (a Conf. Interval) for the average temperature of patients at your hospital. You can't run the populatin, as your software isn't equipped for that. So you must take a sample. You sample 49 patients, and the sample average temperature was 100.1 degrees F. Assume a population standard deviation of 1 degree. At 95% confidence, what is the margin or error? (Leave your answer in two decimal places, and don't incude a dollar sign. ex: 100.23)
A sample of 8 female college students consumes an average of 10 liters of alcohol per month, with a sample standard deviation of 3.9 liters. Monthly alcohol consumption is Normally distributed. What is the margin of error for a 90% Confidence Interval for the mean? (Leave your answer to two decimal places, ex: 18.12)
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You're trying to get an interval estimate (a Conf. Interval) for
the average temperature of patients...
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Determine the sample size needed to construct a 99% confidence interval to estimate the average GPA...
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