Research

H0:  $\mu$  = 3.0 is an example of:

• the alternative hypothesis.

• the critical value of the lower limit.

• the null hypothesis.

• none of the above.

Which of the following is the symbol for the population standard deviation?

• s

• \mu 

• \sigma 

• s^2

When similar results are obtained over time and across situations, this is a measure of:

• validity.

• reliability.

• predictive accuracy.

• biasness.

The simplest form of secondary data research is:

• fact finding

• data conversion

• model building.

• input management.

A hypothesis is a

• Law

• Canon

• postulate

• supposition