Listed below are numbers of Internet users per 100 people and numbers of scientific award winners per 10 million people for different countries. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.01. Internet Users Award Winners |78.3 5.6 79.3 56.9 3.4 66.6 76.3 37.6 O 8.8 1.8 10.7 0.1

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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Listed below are numbers of Internet users per 100 people and numbers of scientific award winners per 10 million people for different countries. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r.
Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.01.
Internet Users
78.3
79.3
56.9
66.6
76.3
37.6
Award Winners
5.6
8.8
3.4
1.8
10.7
0.1
Transcribed Image Text:Listed below are numbers of Internet users per 100 people and numbers of scientific award winners per 10 million people for different countries. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value of r. Determine whether there is sufficient evidence to support a claim of linear correlation between the two variables. Use a significance level of a = 0.01. Internet Users 78.3 79.3 56.9 66.6 76.3 37.6 Award Winners 5.6 8.8 3.4 1.8 10.7 0.1
The linear correlation coefficient is r= .794.
(Round to three decimal places as needed.)
Determine the null and alternative hypotheses.
Ho: P
%3D
H1:p + 0
(Type integers or decimals. Do not round.)
The test statistic is t= 2.61.
(Round to two decimal places as needed.)
The P-value is .059 .
(Round to three decimal places as needed.)
Because the P-value of the linear correlation coefficient is
greater than
the significance level, there is not
sufficient evidence to support the claim that there is a linear correlation between Internet users and scientific award winners.
Transcribed Image Text:The linear correlation coefficient is r= .794. (Round to three decimal places as needed.) Determine the null and alternative hypotheses. Ho: P %3D H1:p + 0 (Type integers or decimals. Do not round.) The test statistic is t= 2.61. (Round to two decimal places as needed.) The P-value is .059 . (Round to three decimal places as needed.) Because the P-value of the linear correlation coefficient is greater than the significance level, there is not sufficient evidence to support the claim that there is a linear correlation between Internet users and scientific award winners.
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