In a Test of Physical Fitness, a Group of Men $\mu$

question 20

Essay

In a test of physical fitness, a group of men ages 65 and older from a local retirement community were told to do as many sit-ups as they could.It is known the population mean $\mu$ is 20 with $\sigma_{X}=8$ The scores for the men from the retirement community are given below.Use a two-tailed rejection region with a total area of 0.05.What is the z- value?

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Definitions:

Maturity Value

The amount payable to the holder of a financial instrument at the date when the instrument becomes due and payable, including principal and any applicable interest.

365-Day Year

A calendar model assuming exactly 365 days in a year, commonly used for calculating interest in finance.

Discount Method

Method of computing the net price using the trade discount rate to calculate the amount of trade discount, and, subsequently, the net price.

Actual Interest Rate

The real cost of borrowing money, including all fees and interest rates, more comprehensively represented than the nominal interest rate.