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Solved: For the data setx24889y1.41.82.12.32.6 (a)Draw a
Chapter 3, Problem 6AYU(choose chapter or problem)
Problem 6AYU
For the data set
x |
2 |
4 |
8 |
8 |
9 |
y |
1.4 |
1.8 |
2.1 |
2.3 |
2.6 |
(a)Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y.
(b)Given thatsx = 3.03315, sy = 0.461519, and r = 0.957241,
(c)Graph the least-squares regression line on the scatter diagram drawn in part (a).
Questions & Answers
QUESTION:
Problem 6AYU
For the data set
x |
2 |
4 |
8 |
8 |
9 |
y |
1.4 |
1.8 |
2.1 |
2.3 |
2.6 |
(a)Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y.
(b)Given thatsx = 3.03315, sy = 0.461519, and r = 0.957241,
(c)Graph the least-squares regression line on the scatter diagram drawn in part (a).
ANSWER:
Problem 6AYU
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 also increasing so x and y are positively correlated and conclude that there is linear relationship exists between two variables.
b).
Given,,