Question

In problems 25-27, use the technology of your choice to do the following tasks.

(a) Construct and interpret the scatterplot for the data.

(b) Decide whether finding the regression line for the data is reasonable. If so, then also do parts (c) -(f).

(c) Determine and interpret the regression equation.

(d) Make the indicated predictions.

(e) Compute and interpret the correlation coefficient.

(f) Identify potential outliers and influential observations.

From the website golf.com part of Sports illustrated cities, we obtain the scores of the first and second rounds of the 2013 U.S. Open Golf tournament. You will find those scores on the WeissStats site. For part (d), predict the second round score of a golfer who got a $72$on the first round.

Short answer

(a) The scaatter plot of the given data is:

(b) No, it is not reasonable to find the regression line for the data because there is no relationship between the variables. The given data does not seem to have a linear pattern.

So the parts (c)-(f) are omitted.

Step-by-step solution

Part (a) Step 1. Given Information. 

From the website golf.com part of Sports illustrated cities, we obtain the scores of the first and second rounds of the 2013 U.S. Open Golf tournament. You will find those scores on the WeissStats site.

Part (a) Step 2. Construct a scatterplot. 

Construct a scatter plot by using MINITAB.

1. Choose Graph > Scatterplot.

2. Choose Connect Line > OK.

3. Under Y-variables, enter column of Second round.

4. Under X-variables, enter the colum of First Round.

5. Click OK.

Part (a) Step 3. Output.

The MINITAB output is:

Part (a) Step 4. Interpretation. 

From the graph, we can find that there is no linear relationship between the First and second round scores.

Part (b) Step 1. Reasonable to find a regression line.  

No, it is not reasonable to find the regression line for the data because there is no relationship between the variables. The given data does not seem to have a linear pattern.

So the parts (c)-(f) are omitted.