) Check Image Best Actress    Best Actor 28                    41 30                    38 30                    40 62                    47

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 11CT
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1) Check Image

Best Actress    Best Actor

28                    41

30                    38

30                    40

62                    47

32                    47

34                    48

44                    64

28                    52

60                    41

23                    54

44                    44

51                    32

2)

The linear correlation coefficient is r=

​(Round to three decimal places as​ needed.)

 

3)

Determine the null and alternative hypotheses.

H0​: ρ

H1​: ρ

​(Type integers or decimals. Do not​ round.)

 

4)

The test statistic is t=

​(Round to three decimal places as​ needed.)

 

5)

The​ P-value is

​(Round to three decimal places as​ needed.)

 

6)

Because the​ P-value of the linear correlation coefficient is?             the significance​ level, there?              sufficient evidence to support the claim that there is a linear correlation between the ages of Best Actresses and Best Actors.

 

7) Check Image

The accompanying table lists the ages of acting award winners matched by the years in which the awards were won. 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. Should we expect that there would be a correlation? Use a significance level of a = 0.01.
E Click the icon to view the ages of the award winners.
Construct a scatterplot. Choose the correct graph below.
OA.
О В.
OC.
OD.
70-
70-
20-
20
Best Actress (years)
20
70
70
20
70
20
Best Actress (years)
Best Actress (years)
Best Actress (years)
BestActor (yea
Best Actor (years)
Best Actor (years)
Transcribed Image Text:The accompanying table lists the ages of acting award winners matched by the years in which the awards were won. 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. Should we expect that there would be a correlation? Use a significance level of a = 0.01. E Click the icon to view the ages of the award winners. Construct a scatterplot. Choose the correct graph below. OA. О В. OC. OD. 70- 70- 20- 20 Best Actress (years) 20 70 70 20 70 20 Best Actress (years) Best Actress (years) Best Actress (years) BestActor (yea Best Actor (years) Best Actor (years)
Should we expect that there would be a correlation?
O A. Yes, because Best Actors and Best Actresses are typically the same age.
O B. Yes, because Best Actors and Best Actresses typically appear in the same movies, so we should expect the ages to be correlated.
O C. No, because Best Actors and Best Actresses are not typically the same age.
O D. No, because Best Actors and Best Actresses typically appear in different movies, so we should not expect the ages to be correlated.
Transcribed Image Text:Should we expect that there would be a correlation? O A. Yes, because Best Actors and Best Actresses are typically the same age. O B. Yes, because Best Actors and Best Actresses typically appear in the same movies, so we should expect the ages to be correlated. O C. No, because Best Actors and Best Actresses are not typically the same age. O D. No, because Best Actors and Best Actresses typically appear in different movies, so we should not expect the ages to be correlated.
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