Pearson’s Correlation requires at least interval level data.

Pearson’s Correlation requires at least interval level data.

Question # 00493338 Posted By: rey_writer Updated on: 03/02/2017 12:46 AM Due on: 03/02/2017
Subject Statistics Topic General Statistics Tutorials:
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Question 1.1.Pearson’s Correlation requires at least interval level data.
(Points : 1)
True
False

Question 2.2.A p-value of 9.22E-36 equals 0.00000000000000000000000000000000000922 and is less than .05
(Points : 1)
True
False

Question 3.3.When plotting variables on a scatter diagram, the variables plotted on the Y-axis is the horizontal axis and the X-axis is the vertical axis.
(Points : 1)
True
False

Question 4.4.If two variables are known to be correlated, it is possible to predict the value of y (dependent variable) from an x (independent) variable.
(Points : 1)
True
False

Question 5.5.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.
(Points : 1)
True
False

Question 6.6.A correlation of .90 and above is generally considered too strong to be of any practical significance.
(Points : 1)
True
False

Question 7.7.A Pearson correlation of +1.00 is considered a “perfect positive correlation”. This means….
(Points : 1)
is a perfect vertical line
is a perfect horizontal line
has the line with a positive slope and runs from the lower left to the upper right
has the line with a positive slope and runs from the upper left to the lower right

Question 8.8.When looking at a regression statistics table, Multiple R displays the percent of variation in common between the dependent and all of the independent variables.
(Points : 1)
True
False

Question 9.9.Which statement does not belong?
(Points : 1)
Excel finds the Pearson Correlation Coefficient using the fx function Correl
Excel finds the Pearson Correlation Coefficient using Data Analysis function Correlation.

Correl can be used for a single or multiple data sets
Danta Analysis function Correlation can be used for a single or multiple data sets

Question 10.10.The t Stat value is used to determine the statistical significance of each of the variables listed in a regression analysis.

(Points : 1)

True
False
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  1. rey_writer
    Tutorial # 00489836 Posted By: rey_writer Posted on: 03/02/2017 12:46 AM
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