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DATA1501 Practice Quiz

Authored by Nathalie Akadje

Mathematics

University

CCSS covered

Used 8+ times

DATA1501 Practice Quiz
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22 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • Ungraded

How do you feel about the final quiz?

Not Confident

Somewhat Confident

Confident

Very Confident

2.

MATCH QUESTION

45 sec • 1 pt

Match the following

We reject the null hypothesis

When P-value<0.05

We do not reject the null hypothesis

Level Of Significance

A measure of how confident you can be about rejecting the null hypothesis

When P-value>0.05

We accept the alternative hypothesis

None of the above

The probability that the null hypothesis is true.

p-value

3.

REORDER QUESTION

20 sec • 1 pt

Reorder the following steps for hypothesis testing

Perform the test

Interpret the result and determine whether to reject the null hypothesis or not

Formulate the hypothesis

Determine the appropriate test for your hypothesis

4.

MATCH QUESTION

30 sec • 1 pt

Slope

x

Intercept

Predictor Variable

Y

Target Variable

Tags

CCSS.8.SP.A.3

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Simple Linear Regression

Multiple Linear Regression

Binning Equation

Residuals Equation

Tags

CCSS.HSS.ID.B.6A

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is true about residuals?

Residuals are also known as error

Residuals are the difference between predicted values of y and observed values of y.

Residual=actual y value −calculated y

Residual=actual y value + calculated y

Tags

CCSS.HSS.ID.B.6B

7.

MATCH QUESTION

45 sec • 1 pt

Match the following transformations to their variables

Ordinal

Variable ranking

Nominal

Dummy Coding

Skewed to the left

None of the above

Symmetrical

Taking the square root

Skewed to the right

Raising to the power of 2

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