Consider the pairs of measurements shown in the next table.
![](https://test.transtutors.com/qimg/5436c500-3e8e-484f-bb7a-a18453ae3153.png)
![](https://test.transtutors.com/qimg/418a372c-09e8-432a-92d2-7458d958303b.png)
a. Construct a scattergram for these data.
b. Plot the least Squares line on your scattergram.
c. Use a 95% confidence interval to estimate the mean value of y when xρ = 6. Plot the upper and lower bounds of the interval on your scattergram.
d. Repeat part c for xρ = 3.2 and xρ = 0.
e. Compare the widths of the three confidence intervals your constructed in parts c and d and explain why they differ.