**MAT540 Statistical Concepts for Research QUIZ (No Guessing)**

**#1 In the generic linear regression equation is Y = A + B*X, what does A stand for?**

The Predicted output variable.

The input variable.

The Intercept

The coefficient of the independent variable

**#2** **A linear regression analysis uses two distinct types of data. The first are variables that are at least nominal level.**

True

False

**#3 When determining statistical significance of correlations, (as a rule of thumb), variable pairs with coefficients greater than (>) .70 are generally not very valuable for prediction. purposes.**

True

False

**#4 When performing a regression analysis using the Regression option in Data Analysis, the input for the Y range is the independent variable (which we can generally control) and the input X range is for the dependent variables.**

True

False

**#5 In the generic multiple regression equation is Y = A + B1*X1 + B2*X2 + …, what does B1 stand for?**

The Predicted output variable.

The input variable.

The Intercept

The coefficient of an independent variable

**#6 If two variables are known to be correlated, it is possible to predict the value of y (dependent variable) from an x (independent) variable.**

True

False

#7 Relationships between variables may exist even when changes in one variable do not “cause” changes in another variable.

True

False

#8 A regression equation can be used to either predict or explain an output.

True

False

**#9 If in a linear regression, the dependent variable is weight (in pounds), the independent variable is height (in inches), the coefficient is 3, and the intercept is 10; what is the regression equation?**

Height = 3 + 10*Weight

Height = 10 + 3* Weight

Weight = 10 + 3*Height

Height = 3 – 10*Weight

**#10 Spearman’s rank order correlation (rho) can be performed on ordinal or any ranked data.**

True

False

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)

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.

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 moreEach 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 moreThanks 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 moreYour 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 moreBy 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