a. Find the correlation coefficient. Round your answer to three decimal places. r= i eTextbook and Media b. Test at a 1 % significance level whether the linear correlation coefficient between the two variables listed in the table is positive. Based on a 1 % significance level test, we conclude that p positive.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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The following table gives information on the amount of sugar (in grams) and the calorie count in one serving of a sample of 13 varieties
of cereal.
Sugar
(grams)
7 14
4
15
14
11
6 6 5 4
20
2 13
Calories
120 200 140 110 120 80 190 100 120 190 190 110 120
a. Find the correlation coefficient.
Round your answer to three decimal places.
r = i
eTextbook and Media
b. Test at a 1 % significance level whether the linear correlation coefficient between the two variables listed in the table is
positive.
Based on a 1 % significance level test, we conclude that p
positive.
Transcribed Image Text:The following table gives information on the amount of sugar (in grams) and the calorie count in one serving of a sample of 13 varieties of cereal. Sugar (grams) 7 14 4 15 14 11 6 6 5 4 20 2 13 Calories 120 200 140 110 120 80 190 100 120 190 190 110 120 a. Find the correlation coefficient. Round your answer to three decimal places. r = i eTextbook and Media b. Test at a 1 % significance level whether the linear correlation coefficient between the two variables listed in the table is positive. Based on a 1 % significance level test, we conclude that p positive.
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