# Question

The data from Exercise 4.68 for home size (in square feet) and assessed value (in thousands of dollars) for the same homes as in Exercise 4.135 are on the WeissStats CD.

a. Decide whether use of the linear correlation coefficient as a descriptive measure for the data is appropriate. If so, then also do parts (b) and (c).

b. Obtain the linear correlation coefficient.

c. Interpret the value of r in terms of the linear relationship between the two variables in question.

a. Decide whether use of the linear correlation coefficient as a descriptive measure for the data is appropriate. If so, then also do parts (b) and (c).

b. Obtain the linear correlation coefficient.

c. Interpret the value of r in terms of the linear relationship between the two variables in question.

## Answer to relevant Questions

The data from Exercise 4.69 for average high and low temperatures in January for a random sample of 50 cities are on the WeissStats CD. a. Decide whether use of the linear correlation coefficient as a descriptive measure for ...In the article "Comparison of Fiber Counting by TV Screen and Eyepieces of Phase Contrast Microscopy" (American Industrial Hygiene Association Journal, Vol. 63, pp. 756-761), I. Moa et al. reported on determining fiber ...y = 0.5x − 2 a. Find the y-intercept and slope. b. Determine whether the line slopes upward, slopes downward, or is horizontal, without graphing the equation. c. Use two points to graph the equation. −2 and −3 a. Determine whether it slopes upward, slopes downward, or is horizontal, without graphing the equation. b. Find its equation. c. Use two points to graph the equation. In this section, we stated that any nonvertical line can be described by an equation of the form y = b0 + b1x. a. Explain in detail why a vertical line can't be expressed in this form. b. What is the form of the equation of ...Post your question

0