Statistics Chapter 1

The variable age is an example of a quantitative variable.

• True

• False

Select the best answer: Ratings of eight local plays (poor, fair, good, excellent)

• Nominal-level

• Ordinal-level

• Interval-level

• Ratio-level

Select the best answer: The color of someone eyes (blue, brown, green, hazel)

• Nominal-level

• Ordinal-level

• Interval-level

• Ratio-level

Select the best answer: Time it takes to cut a lawn

• Qualitative

• Quantitative

Select the best answer: Every 100th hamburger manufactured is checked to determine its fat content.

• random

• systematic

• stratified

• cluster

Select the best answer: A survey is conducted by calling people out of a phone book.

• random

• systematic

• stratified

• cluster

Select the best answer: A President at a University polls the Freshman and Sophomore classes only on how they like their dorms.

• random

• systematic

• stratified

• cluster

What study involves no intervention?

• Experimental study

• Noninvolvement study

• Observational study

• Quasi-experimental study

What study that involves the researcher manipulating one of the variables

• Experimental study

• Noninvolvement study

• Observational study

• Quasi-experimental study

Select the best answer: A diet high in fruits and vegetables will lower blood pressure.

• Decriptive

• Inferential