Question
In: Math
PLEASE DO BY HAND AND NOT EXCEL Suppose we have the following data on variable X...
PLEASE DO BY HAND AND NOT EXCEL
- Suppose we have the following data on variable X (independent) and variable Y (dependent):
X Y
2 70
0 70
4 130
a. Test to see whether X and Y are significantly related using a t-test on the slope of X. Test this at the 0.05 level.
b. Test to see whether X and Y are significantly related using an F-test on the slope of X. Test this at the 0.05 level.
Solutions
milcah answered 1 year agoRelated Solutions
Suppose we have the following data on a dependent variable (Y) and an explanatory variable (X):...
Suppose we have the following data on a dependent variable (Y)
and an explanatory variable (X):
X Y
0 140
1 140
4 0
0 180
3 80
2 120
4 0
1 200
2 120
3 40
Calculate the simple linear regression equation by hand. Show
all your work. Using your result, predict the value of Y when X =
3.5. (15 points)
Calculate the R2and the adjusted
R2measures (by hand) and provide an interpretation of
what they tell us. (12 points)
Test (by hand) to see whether this is...
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...
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
Test to see whether X and Y are significantly related using a
t-test on the slope of X. Test this at the 0.05 level.
Test to see whether X and Y are significantly related using an
F-test on the slope of X. Test this at the 0.05 level.
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...
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
By hand, determine the simple regression equation relating Y
and X.
Calculate the R-Square measure and interpret the result.
Calculate the adjusted R-Square.
Test to see whether X and Y are significantly related using a
test on the population correlation. Test this at the 0.05
level.
Test to see whether X and Y are significantly related using a...
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
(SOLVE ALL BY HAND, NOT BY USING EXCEL)
By hand, determine the simple regression equation relating Y
and X.
Calculate the R-Square measure and interpret the result.
Calculate the adjusted R-Square.
Test to see whether X and Y are significantly related using a
test on the population correlation. Test this at the 0.05
level.
Test to see whether...
Suppose that we have a single input variable X and all possible values of X is...
Suppose that we have a single input variable X and all possible
values of X is {0, 1, 2}. Also, suppose that we have two groups for
outcomes (i.e., Y = 1, 2). It is known that the X|Y = 1 has
Binomial(2, 0.7) and X|Y = 2 has the discrete uniform. In addition,
P(Y = 1) = 0.3.
(1) Predict Y for X = 0, 1, 2, respectively, using the Bayes
classifier.
(2) Compute the overall Bayes error rate.
Suppose we have the following pdf for the random variable X f(x) ={x 0<=x<=1 c/x^2 1<=x<=...
Suppose we have the following pdf for the random variable X
f(x) ={x 0<=x<=1
c/x^2 1<=x<= infinity
0 otherwise
}
(a) 2 points Find the value c such that f(x) is a valid pdf.
(b) 3 points Find the cdf of X.
(c) 1 point Find the 75th percentile of X.
Suppose we have a random variable X that is uniformly distributed between a = 0 and...
Suppose we have a random variable X that is uniformly
distributed between a = 0 and b = 100. What is σ X?
a. 0.913
b. 0.833
c. 50
d. 7.071
**BY HAND** For the Data Below, please do the following: State the null and alternative hypotheses....
**BY HAND** For the Data Below, please do the
following:
State the null and alternative hypotheses. (2
points)
Construct an ANOVA table (20 pts)
Determine whether your results are significant (1
points)
Do a post hoc analysis (using Tukey’s HSD), if necessary
(5 points)
State your conclusions in one or two sentences. (2
points)
A survey was done in a community in which residents were
asked if they felt that family planning counseling was needed in
the community. The tabulation...
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