Regression Analysis Answers

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1
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The table shows the measured height, in feet, of an airplane at certain times, in minutes, after takeoff. Complete the statements interpreting the regression model of the data.

Answers:
In the model, which best represents the data, there is .:logistic
In the model, which best represents the data, there is .:a limiting value of 29,864
2
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a growth rate of 9,381an initial value 0.9948✔ a limiting value of 29,864

A
a growth rate of 9,381
B
an initial value 0.9948
C
✔ a limiting value of 29,864
172053

Complete the descriptors of the regression equation for this data.

Answers:
The data is best modeled by function.:an exponential
The value of a is , the value of b is , and the value of c is .:2.653
The value of a is , the value of b is , and the value of c is .:1.01
The value of a is , the value of b is , and the value of c is .:not used
172054

–5.930.0006✔ 2.653

A
–5.93
B
0.0006
C
✔ 2.653
172055

0.015✔ 1.013.0

A
0.015
B
✔ 1.01
C
3.0
172056

2.22.77✔ not used

A
2.2
B
2.77
C
✔ not used
172064

The table includes weekly data collected by the Internal Revenue Service. Complete the sentences about a regression model if x is the time, in weeks, since February 1, 2019, and y is the cumulative number of millions of tax returns filed.

Answers:
The data is best modeled by a function.:logistic
The value of a is , the value of b is , and the value of c is .:5.52
The value of a is , the value of b is , and the value of c is .:0.27
The value of a is , the value of b is , and the value of c is .:162.95
172065

–11.99 –0.24✔ 5.52

A
–11.99
B
–0.24
C
✔ 5.52
172066

✔ 0.2713.1057.48

A
✔ 0.27
B
13.10
C
57.48
172067

11.80✔ 162.95not used

A
11.80
B
✔ 162.95
C
not used
172075

The table shows the measured amount of a medication in the body after a given number of hours. Which statements describe the regression equation that best models the data? Check all that apply.

A
The value of b is 9.06.
B
The value of c is not used.
C
The regression equation is undefined at 0.
D
The regression equation has a limiting value.
E
The value of a is negative in a polynomial model.
172078

The table shows the measured height, in feet, of an airplane at certain times, in minutes, after takeoff. Complete the statements interpreting the regression model of the data.

Answers:
In the model, which best represents the data, there is .:logistic
In the model, which best represents the data, there is .:a limiting value of 29,864
172080

The table shows the expected profit at various selling prices for a new camera. Complete the statements interpreting the regression model of the data.

Answers:
In the model, the explanatory variable is the and the response variable is the .:quadratic
In the model, the explanatory variable is the and the response variable is the .:selling price
In the model, the explanatory variable is the and the response variable is the .:profit

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