Suppose That Your Task Is to Estimate the Mean of a Normally

question 113

Short Answer

Suppose that your task is to estimate the mean of a normally distributed population to within 10 units with 95% confidence and that the population standard deviation is known to be 70.
What sample size should be used if you wish to estimate the population mean to within 5 units?

---

Definitions:

FICA-Medicare

The portion of the Federal Insurance Contributions Act tax that is designated to fund Medicare, the health insurance program for the elderly and certain disabled individuals.

Odd Years

Years that are not evenly divisible by two, indicating an odd number as the final digit.

W-3

A tax form used in the United States that summarizes the total wages paid and taxes withheld for all employees of a company.

FICA-Medicare

The portion of FICA taxes that funds Medicare, providing health insurance for the aged and disabled.