Calculate the sample correlation coefficient

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Reference no: EM131332434

1) One factor in determining the shelf life of a dry cereal is the moisture content.  Since standard packaging techniques do not completely prevent cereal from absorbing moisture, the longer it stays on the shelf, the more moisture it absorbs.  A new cereal called "Tops" is being tested.  In the data that follow, "X" is the time on the shelf in days and "Y" is the moisture content measured on a scale from 1 to 10.

X

0

6

10

16

24

30

37

Y

2.9

3.2

3.5

3.6

3.9

4.2

4.6

a. Calculate the sample correlation coefficient

b. Use the 5% significance level to test for a positive population correlation between the time on the shelf ("X") and the moisture content ("Y").

Reference no: EM131332434

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