Question 36

A formal statement that there is an absence of relationship between variables when tested by a researcher is called:

Null hypothesis

Type I error

Type II error

Negative interval

Question 37

It is important to assess the magnitude or strength of a relationship because this assists you with deciding whether or not a variable A causes variable B.

True

False

Question 38

A significant finding with the 2 sample t-test indicates a strong relationship exists between the 2 population means.

True

False

Question 39

A score that is likely to fall into the middle 68% of scores of a normal distribution will fall inside these values:

. +/- 3 standard deviations

+/- 2 standard deviations

+/- 1 standard deviation

semi-quartile range

Question 40

This is the measurement of dispersion equal to the square root of the mathematical variance.

Mean

Median

Standard deviation

Range