Chapter 4.CR, Problem 22CR

To determine

(a)

To plot:

The ordered pairs and check whether the data exhibits a linear trend.

To determine

(b)

To find:

The line of best fit.

To determine

(c)

To predict:

The value of $y$ when $x=15$.

To determine

(d)

To plot:

The given ordered pairs and sketch the graph of the line of best fit on the same coordinate system.

To determine

(e)

To find:

The coefficient of linear correlation.

To determine

(f)

To show:

The reliability of the prediction in part (c).