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This is an assignment before my quiz. I need an “A”! I need the work to be shown please.
MAT 151
Chapter 9
Assignment 1
8 Points
A sample of 10 adult men gave the following data on their heights and weights.
|
Height (inches) |
x |
62 |
63 |
65 |
66 |
67 |
68 |
70 |
72 |
||
|
Weight (pounds) |
y |
120 |
140 |
130 |
150 |
142 |
135 |
175 |
149 |
168 |
1. Graph the data on a scatter plot.
1. Find the equation of the regression line.
(c) Find the standard error of estimate, Se.
1. Find r (correlation coefficient). Interpret the value of r in the context of
this problem.
1. Find the coefficient of determination. Explain what it means in the context of this problem.
1. Predict the weight of a man whose height is 60 inches.
(g) Find a 90% confidence interval for men of height 60 inches (use your answer from part f).
1. Predict the height of a man whose weight is 160 pounds.
