1-A moving average is the average of the observations in the past few periods, where the number of terms in the average is the span. True False
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1-A moving average is the average of the observations in the past few periods, where the number of terms in the average is the span.
c.measuring the strength of a nonlinear relationship.
d.assessing the weakness of a linear relationship.
5 - Which of the following will give the value for the third quartile?
a. QUARTILE.INC(array, 0.25)
b.QUARTILE.INC(array, 0.75)
c. PERCENTILE.INC(array, 0.75)
d.DECILE.INC(array, 0.30)
6 - _______ sampling applies to populations that are divided into natural subsets and allocates the appropriate proportion of samples to each subset.
b.Stratified
c.Cluster
d.Continuous process
7 - Null hypothesis is x >4, what is alternative hypothesis?
d.X<4
8 - A regression model that involves a single independent variable is called
b.individual regression
c.simple regression
d. single regression
9 - The correlation between two variables is unitless and always between –1 and +1.
10 - To help explain or predict the response variable in every regression study, we use one or more explanatory variables. These variables are also called response variables or independent variables.
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5 - Which of the following will give the value for the third quartile?
a. QUARTILE.INC(array, 0.25)
b.QUARTILE.INC(array, 0.75)
c. PERCENTILE.INC(array, 0.75)
d.DECILE.INC(array, 0.30)
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