1. the strength of the linear relationship

 

1.    The strength of the linear relationship between two numerical variables may be measured by the

[removed]

 

scatter diagram.

[removed]

 

coefficient of correlation.

[removed]

 

slope.

[removed]

 

Y-intercept.

10 points  

Question 2

1.      

If you wanted to analyze the correlation between the NUMBER OF HOURS PRACTICED and the NUMBER OF TARGETS HIT by a sharpshooter, which variable would be the dependent variable?

[removed]

 

Number of hours practiced

[removed]

 

Number of targets hit

[removed]

 

Neither one is dependent

[removed]

 

Either one could be dependent (impossible to determine)

10 points  

Question 3

1.      

Before proceeding with a simple linear regression, you should first construct a scatter diagram in order that you can remove all outliers from the data.
 

[removed]True

[removed]False

10 points  

Question 4

1.      

What does it mean to have a negative coefficient in the regression model?

[removed]

 

That variable reduces the coefficient of determination.

[removed]

 

The values for that variable are negative.

[removed]

 

There is an inverse relationship with that variable.

[removed]

 

The correlation is weak.

10 points  

Question 5

1.      

Assuming a linear relationship between X and Y, if the coefficient of correlation (r) equals -0.30,

[removed]

 

there is no correlation.

[removed]

 

the slope (b1) is negative.

[removed]

 

variable X is larger than variable Y.

[removed]

 

the variance of X is negative.

 

 

10 points  

Question 6

1.      

If the hypothesis test for correlation is found to be significant (i.e., we rejected the null hypothesis / accepted the alternate hypothesis), what can we automatically conclude about the strength of the correlation?

[removed]

 

We can conclude that the correlation must be strong.

[removed]

 

We can only conclude that the correlation is not weak

[removed]

 

We cannot conclude anything about the strength of the correlation yet.

10 points  

Question 7

1.      

A negative correlation coefficient implies that as the value of independent variable increases, the value of the dependent variable _________________.
 

[removed]

 

Increases

[removed]

 

Decreases

[removed]

 

Cannot be determined from the information given

10 points  

Question 8

1.      

There is a strong positive correlation between a baby’s weight and the size of his/her vocabulary. From this we can conclude that overeating will improve one’s vocabulary.
 

[removed]True

[removed]False

10 points  

Question 9

1.      

If the correlation coefficient (r) = 1.00, then

[removed]

 

all the data points must fall exactly on a straight line with a slope that equals 1.00.

[removed]

 

all the data points must fall exactly on a straight line with a negative slope.

[removed]

 

all the data points must fall exactly on a straight line with a positive slope.

[removed]

 

all the data points must fall exactly on a horizontal straight line with a zero slope.

10 points  

Question 10

1.      

Assume the regression model for predicting home prices by the square footage were: PRICE = 12510 + 83 (SQRFT) For every additional one square foot, how much does the price increase?

[removed]

 

$12,593

[removed]

 

$83

[removed]

 

$166

[removed]

 

Cannot be determined from the information given.

 

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

STAY HOME, SAVE LIVES. Order your essay today and save 20% with the discount code ATOM