How large a sample would be needed to ensure that the length of the CI in Problem 6 30 is 0 5 g mL assuming the sample standard deviation remains at 2 0 g mL Pharmacology Suppose we want to estimate the concentration (g mL) of a specific dose of ampicillin in the urine after various periods of time...

The length of the 95 confidence interval in Problem 641 is given by and ...

How large a sample would be needed to ensure that the length of the CI in Problem

Question:

How large a sample would be needed to ensure that the length of the CI in Problem 6.30 is 0.5 μg/mL assuming the sample standard deviation remains at 2.0 μg/mL?

Pharmacology

Suppose we want to estimate the concentration (μg/mL) of a specific dose of ampicillin in the urine after various periods of time. We recruit 25 volunteers who have received ampicillin and find they have a mean concentration of 7.0 μg/mL with a standard deviation of 2.0 μg/mL. Assume the underlying population distribution of concentrations is normally distributed.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...