Question

In: Statistics and Probability

Step 2 Data Set A x 1 2 3 4 5 6 7 y 7 7...

Step 2

Data Set A

x

1

2

3

4

5

6

7

y

7

7

7

9

9

9

10

Data Set B

x

1

2

3

4

5

6

7

8

9

10

11

y

4

6

6

6

8

9

9

9

10

10

10

Step 2

  1. Find the equation for the least-squares line, and graph the line on the scatter plot.
  2. Find the sample correlation coefficient r and the coefficient of determination r2. Is r significant? What criteria did you use to determine if it was significant? For each set of data
  3. What predictions can you make using this data sets? Write a brief explanation of what you found in the data sets.

Solutions

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