Question

1. Of interest is to study the relationship between the number of seeds or pellets that Parsnip eats and the amount of time that it takes Parsnip to eat his food. A simple random sample of 37 days is selected and each day the number of seeds or pellets eaten and the amount of time that it takes Parsnip to eat his food is determined. Which of the following is a graphical method that would allow one to describe the relationship between the two variables?

	a.	Scatterplot
	b.	Boxplot
	c.	Stem-and-leaf plot
	d.	Correlation coefficient
	e.	Bar graph

A. The correlation between the number of seeds or pellets that Parsnip eats and the amount of time that it takes Parsnip to eat his food is calculated to be -0.15. Use this value to verbally describe the relationship between the two variables.

B. The goal is to use the number of seeds or pellets that Parsnip eats to predict the amount of time that it takes Parsnip to eat his food. In this situation which one of the following statements is true?

	a.	The number of seeds or pellets that Parsnip eats is the response variable.
	b.	The amount of time that it takes Parsnip to eat his food is the independent variable.
	c.	The number of seeds or pellets that Parsnip eats is the explanatory variable.
	d.	The amount of time that it takes Parsnip to eat his food is a lurking variable.

Answer 1

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