The Rejection Region for Testing the Hypotheses H0: 

question 79

Multiple Choice

The rejection region for testing the hypotheses H0:  = 80
HA:  < 80
At the 0.10 level of significance is:

• A)Z > 1.96.
• B)Z < 0.90.
• C)Z > -1.65.
• D)Z < -1.28.

---

Definitions:

Histogram

A graphical representation that displays the distribution of data using bars of different heights.

Age Distribution

The frequency of different ages or age groups in a given population.

Estimate

A value calculated from sample data that is used to indicate the value of a population parameter.

Proportion

A statistical measure that represents the fraction of the total number of objects in a particular category relative to the total number of objects in all categories.