State University recently randomly sampled ten students and analyzed grade point average (GPA) and ...

State University recently randomly sampled ten students and analyzed grade point average (GPA) and number of hours worked off-campus per week. The following data were observed:

GPA HOURS
3.14 25
2.75 30
3.68 11
3.22 18
2.45 22
2.80 40
3.00 15
2.23 29
3.14 10
2.90 0

The correlation between these two variables is approximately -.461
Indicate whether the statement is true or false

Q. 2

In conducting a test of independence for a contingency table that has 4 rows and 3 columns, the number of degrees of freedom is 11.

Indicate whether the statement is true or false

Q. 3

An annual time series cannot exhibit a seasonal component.

Indicate whether the statement is true or false

Q. 4

When the variables of interest are both categorical and the decision maker is interested in determining whether a relationship exists between the two, a statistical technique known as contingency analysis is useful.

Indicate whether the statement is true or false

Q. 5

A model is a representation of an actual system.

Indicate whether the statement is true or false

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State University recently randomly sampled ten students and analyzed grade point average (GPA) and ...

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