Question
In: Statistics and Probability
Here is data with y as the response variable. x y 71.4 25.1 82.8 34.4 81...
Here is data with y as the response variable.
| x | y |
|---|---|
| 71.4 | 25.1 |
| 82.8 | 34.4 |
| 81 | 75.3 |
| 77.1 | 72.8 |
| 84.6 | 63.4 |
| 64.8 | 75.8 |
| 85.4 | 117.6 |
| -14.1 | 173.3 |
| 76.7 | 51.2 |
| 63.3 | 140.8 |
- Make a scatter plot of this data. Which point is an outlier?
Enter as an ordered pair, e.g., (x,y).
(x,y)= - Find the regression equation for the data set
without the outlier. Enter
the equation of the form mx+b rounded to three decimal
places.
ˆywo= - Find the regression equation for the data set
with the outlier. Enter the
equation of the form mx+b rounded to three decimal
places.
ˆyw=
Solutions
orchestra answered 2 years agoRelated Solutions
Here is data with y as the response variable. x y 43.2 52.4 52.8 58.7 52.5...
Here is data with
y as the response variable.
x
y
43.2
52.4
52.8
58.7
52.5
48.6
189.8
112.4
64.6
49.8
47.6
57.2
31.4
36.4
66.6
60.1
Make a scatter plot of this data. Which point is an
outlier?
Enter as an ordered pair. For example (a,b) - with
parenthesis.
Find the regression equation for the data set
without the outlier.
Enter as an equation of the form y=a+bxy=a+bx. Rounded to three
decimal places. For this WAMAP question, do not...
Here is data with y as the response variable. x y 57.8 47.7 65.3 42.7 61...
Here is data with y as the response variable. x y 57.8 47.7 65.3
42.7 61 30.8 54.5 26.4 -70.7 -338.8 63 45.7 38.9 -46.1 70.2 35.5
Make a scatter plot of this data. Which point is an outlier? Enter
as an ordered pair. For example (a,b) - with parenthesis. Find the
regression equation for the data set without the outlier. Enter as
an equation of the form y = a + b x . Rounded to three decimal
places....
Here is data with y as the response variable. (x,y): 59.2 48.5, 64.5 46.8, 47.4 13.8,...
Here is data with y as the response variable.
(x,y): 59.2 48.5, 64.5 46.8, 47.4 13.8, -37.3 10, 71.4 84.9,
71.6 18.3, 64.4 28.3, 71.1 89.6, 56.2 6.2, 56.7 11.7, 69.1 23.8
Make a scatter plot of this data. Which point is an outlier?
Enter as an ordered pair. For example (a,b) - with parenthesis.
1. Find the regression equation for the data set without the
outlier. Enter as an equation of the form y = a + b x...
Consider data regarding a response y and an explanatory variable x, both numeric x y 1...
Consider data regarding a response y and an explanatory variable
x, both numeric
x
y
1
2.8
0.7
2
2.6
1.3
3
6.8
-1.1
4
3.0
0.2
5
4.7
1.1
6
5.0
-0.1
7
5.0
0.9
8
2.9
1.0
9
7.0
-0.2
10
3.7
0.8
The null hypothesis that the expected value of the response is
constant for all values of the explanatory variable is:
Select one:
a. Not rejected with a significance level of 5%.
b. Rejected with a...
Collect data on one response (dependent or y) variable and two different explanatory (independent or x)...
Collect data on one response (dependent or y) variable and two
different explanatory (independent or x) variables. This will
require a survey with three questions. For example: To predict a
student’s GPA (y), you might collect data on two x variables: SAT
score and age. So we would be trying to determine if there was a
linear correlation between someone’s SAT score and their GPA, as
well as their age and their GPA. (Note: students may not choose GPA
as...
Collect data on one response (dependent or y) variable and two different explanatory (independent or x)...
Collect data on one response (dependent or y) variable and two
different explanatory (independent or x) variables. This will
require a survey with three questions. For example: To predict a
student’s GPA (y), you might collect data on two x variables: SAT
score and age. So we would be trying to determine if there was a
linear correlation between someone’s SAT score and their GPA, as
well as their age and their GPA. (Note: students may not choose GPA
as...
a)By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable
x
4
5
6
8
9
y
6
8
11
14
16
a)By hand, draw a scatter diagram treating x as the explanatory
variable and y as the response variable
b)Find the equation of the line containing the points (44,66)
and (9,16).
c)Graph the line found in part (b) on the scatter diagram.
d)By hand, determine the least-squares regression line.
e)Graph the least-squares regression line on the scatter
diagram.
f)Compute the sum of the squared residuals for the line found...
Consider a binary response variable y and an explanatory variable x. The following table contains the...
Consider a binary response variable y and an
explanatory variable x. The following table contains the
parameter estimates of the linear probability model (LPM) and the
logit model, with the associated p-values shown in
parentheses.
Variable
LPM
Logit
Constant
−0.78
−5.90
(0.03
)
(0.03
)
x
0.04
0.28
(0.07
)
(0.02
)
a. Test for the significance of the intercept and
the slope coefficients at the 5% level in both models.
Coefficients
LPM
Logit
Intercept
Slope
b. What is the...
Consider a binary response variable y and an explanatory variable x. The following table contains the...
Consider a binary response variable y and an
explanatory variable x. The following table contains the
parameter estimates of the linear probability model (LPM) and the
logit model, with the associated p-values shown in
parentheses.
Variable
LPM
Logit
Constant
−0.70
−6.60
(0.03
)
(0.03
)
x
0.04
0.18
(0.04
)
(0.03
)
a. Test for the significance of the intercept and
the slope coefficients at the 5% level in both models.
coefficient
LPM
Logit
intercept
slope
b. What is the...
Suppose we have the following data on variable X (independent) and variable Y (dependent): X Y...
Suppose we have the following data on variable X (independent)
and variable Y (dependent):
X
Y
2
70
0
70
4
130
a.) By hand, determine the simple regression equation relating Y
and X.
b.) Calculate the R-Square measure and interpret the result.
c.) Calculate the adjusted R-Square.
d.) Test to see whether X and Y are significantly related using
a test on the population correlation. Test this at the 0.05
level.
e.) Test to see whether X and Y...
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