Use the given data set to complete parts (a) through (c) below. (Use alphaαequals=0.05.) x 10 8 13 9 11 14 6 4 12 7 5 y 7.45 6.76 12.74 7.11 7.82 8.84 6.09 5.39 8.15 6.43 5.72 a. Construct a scatterplot. Choose the correct graph b. Find the linear correlation coefficient, r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. The linear correlation coefficient is requals=nothing. (Round to three decimal places as needed.) Using the linear correlation coefficient found in the previous step, determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. Choose the correct answer below. A. There is insufficientinsufficient evidence to support the claim of a nonlinear correlation between the two variables. B. There is sufficientsufficient evidence to support the claim of a nonlinear correlation between the two variables. C. There is sufficientsufficient evidence to support the claim of a linear correlation between the two variables. D. There is insufficientinsufficient evidence to support the claim of a linear correlation between the two variables. c. Identify the feature of the data that would be missed if part (b) was completed without constructing the scatterplot. Choose the correct answer below. A. The scatterplot reveals a perfect straight-line pattern and does not contain any outliers. B. The scatterplot reveals a perfect straight-line pattern, except for the presence of one outlier. C. The scatterplot does not reveal a perfect straight-line pattern, and contains one outlier. D. The scatterplot does not reveal a perfect straight-line pattern.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Use the given data set to complete parts (a) through (c) below. (Use

alphaαequals=0.05.)

x	10	8	13	9	11	14	6	4	12	7	5
y	7.45	6.76	12.74	7.11	7.82	8.84	6.09	5.39	8.15	6.43	5.72

a. Construct a scatterplot. Choose the correct graph

b. Find the linear correlation coefficient, r, then determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables.

The linear correlation coefficient is

requals=nothing.

(Round to three decimal places as needed.)

Using the linear correlation coefficient found in the previous step, determine whether there is sufficient evidence to support the claim of a linear correlation between the two variables. Choose the correct answer below.

There is

insufficientinsufficient

evidence to support the claim of a nonlinear correlation between the two variables.

There is

sufficientsufficient

evidence to support the claim of a nonlinear correlation between the two variables.

There is

sufficientsufficient

evidence to support the claim of a linear correlation between the two variables.

There is

insufficientinsufficient

evidence to support the claim of a linear correlation between the two variables.

c. Identify the feature of the data that would be missed if part (b) was completed without constructing the scatterplot. Choose the correct answer below.

The scatterplot reveals a perfect straight-line pattern and does not contain any outliers.

The scatterplot reveals a perfect straight-line pattern, except for the presence of one outlier.

The scatterplot does not reveal a perfect straight-line pattern, and contains one outlier.

The scatterplot does not reveal a perfect straight-line pattern.

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