Solution Found!
For the data setx023566y5.85.75.22.81.92.2 (a)Draw a
Chapter 3, Problem 5AYU(choose chapter or problem)
Problem 5AYU
For the data set
x |
0 |
2 |
3 |
5 |
6 |
6 |
y |
5.8 |
5.7 |
5.2 |
2.8 |
1.9 |
2.2 |
(a)Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y.
(b)Given thatsx= 2.4221, sy = 1.8239, and r = –0.9477,determine the least-squares regression line.
(c)Graph the least-squares regression line on the scatter diagram drawn in part (a)
Questions & Answers
QUESTION:
Problem 5AYU
For the data set
x |
0 |
2 |
3 |
5 |
6 |
6 |
y |
5.8 |
5.7 |
5.2 |
2.8 |
1.9 |
2.2 |
(a)Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y.
(b)Given thatsx= 2.4221, sy = 1.8239, and r = –0.9477,determine the least-squares regression line.
(c)Graph the least-squares regression line on the scatter diagram drawn in part (a)
ANSWER:
Problem 5AYU
Answer:
Step1:
a).The below scatterplot is obtained by using excel
Enter the data in a Excel sheet
select all data given in problem
select scatter plot then press ok
From the above graph we can notice that as the value of x increases the value of y is decreasing so x and y are negatively correlated.
b).
Given,