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Regression Analysis
Page 2
Questions (480)
If the correlation coefficient is -0.54, what is the sign of the slope of the regression line?
- As the correlation coefficient
3 answers
asked by
mom
905 views
In conducting multiple regression analyses (MRAs), a major technical concern involves any high correlation of predictor
3 answers
asked by
Pat
949 views
formula of correlation coefficient of multiple regression
3 answers
asked anonymously
34 views
You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for
4 answers
asked by
K
220 views
Association between two categorical variables can be determined by simple linear regression.
2 answers
asked by
Rondezy
129 views
A psychologist conducts a survey about the number of days per year a person was happy compared to the number of rainy days that
4 answers
asked by
jacob
1,044 views
5. The regression line can be used to predict the value of the independent variable (x).
A) True B) False true??
3 answers
asked by
Hayley
895 views
What is the natural logarithmic regression equation for the following data? Estimate the value for x = 15
x 2, 4, 7, 10 y 3, 8,
4 answers
asked by
Jonah
986 views
24. You use a line of best fit for a set of data to make a prediction about an unknown value. The correlation coefficient for
10 answers
asked by
Lynn
3,383 views
Find the equation of the regression line for the given data. Predict the value of Y when X=-2? Predict the value of Y when X =
3 answers
asked by
Anonymous
986 views
In the following regression, X = total assets ($ billions), Y = total revenue ($ billions), and n = 64
large banks. (a) Write the
3 answers
asked by
ronald
649 views
12) The regression equation Credits = 15.4 - .07 Work was fitted from a sample of 21 statistics students. Credits is the number
3 answers
asked by
kim
897 views
You have estimated the following model for demand of grape juice using one
hundred observations. Qg = 153.81 – 0.75Pg + 0.37Po
3 answers
asked by
Star
122 views
4. Modeling Assumptions in Regression
Review: Joint, Conditional, and Marginal Distributions Let (X,Y) be a pair of random
3 answers
asked by
Misso
201 views
QUESTION
A sample of 5 observations collected in a regression study on two variables, x(independent variable) and y(dependent
3 answers
asked by
Marie
540 views
3. The table shows the heights of the winners and runner-ups of 8 presidential elections. Find the line of regression that
4 answers
asked by
maczindahouse
2,017 views
In exercise 12, the following data on x = average daily hotel room rate and y = amount spent on entertainment (The Wall Street
3 answers
asked by
Brandon
2,696 views
if the equation for the regression line for the data set (3,6), (6,2), (9,10) is y=2/3x+2, what is the sse for the data set?
A.
4 answers
asked by
kristy
2,851 views
x=square footage of a house
y=asking price in thousands of the house. x goes from 1200 square feet to 1500 square feet. the
3 answers
asked by
Trisha
620 views
Four pairs of data yield r=0.942 and the regression equation y-hat=3x. Also, y-bar=12.75. What is the best predicted value for
4 answers
asked by
Stella
2,273 views
A researcher measures the following scores for a group of people. The X variable
is the number of errors on a math test, and the
3 answers
asked by
J.T
931 views
Which of the following is not a source of caution in regression analysis between two variables?
A) non-linear form. B) linear
2 answers
asked by
Jeremy
533 views
For certain x and y series which are correlated, the two lines of regression are 5x-6y+9=0 , 15x-8y+130=0. The correlation
4 answers
asked by
anand nanda
1,010 views
Question 1
Shown below are rental and leasing revenue figures for office machinery and equipment in the United States over a
3 answers
asked by
Anonymous
609 views
A set of X and Y scores has SSx=10, SSY=20, and SP=8, what is the slope for the
regression equation? a. 8/10 b. 8/20 c. 10/8 d.
3 answers
asked by
Robbie
1,114 views
The following data represent the number of flash drives sold per day at a local computer shop and their prices.
Price (x) Units
2 answers
asked by
Ruth
692 views
Each of 25 adult women was asked to provide her own height (y), in inches, and the height of her father. The scatterplot below
3 answers
asked by
gate
1,999 views
An ecologist uses the line, based on 13 colonies, to predict how many birds will join another colony, to which 54% of the adults
2 answers
asked by
applebottom
625 views
Rubax, a US manufacturer of athletic shoes, estimates the following linear trend model for shoe sales.
Q1=a+bt+c1D1+c2D2+c3D3
3 answers
asked by
JackEconomics
1,061 views
In Professor Smith's statistics course, the correlation between students' total scores before the final exam and their final
4 answers
asked by
Jannel
2,700 views
The table shows the depth (d metres) of water in a harbour at certain times (t hours) after midnight on a particular day.
Time t
3 answers
asked by
grant
987 views
Consider random variables \mathbf X= (X_1, X_2) and Y. Assume that the regression function \mu (x_1, x_2) = \mathbb E[Y \; |\; X
2 answers
asked anonymously
55 views
Although the \, X_ i \, are discrete, we can also use a logistic regression model to analyze the data. That is, now we assume
Y_
2 answers
asked anonymously
78 views
An airline company wishes to build a predictor for whether or not a passenger will show up on time for a flight (a yes/no
2 answers
asked anonymously
62 views
How to determine the induvidual partial slope coefficient under multiple regression model??
2 answers
asked by
Evaristi Paulo
65 views
dnger.of estimating a regression.without origin
1 answer
asked by
mafia
53 views
What is partial regression coefficients
1 answer
asked by
William wandwi
75 views
What is partial regression model
1 answer
asked by
William wandwi
83 views
Explain the meaning and use of:
i)Partial regression coefficients ii)Partial correlation iii) Standardized/Beta coefficients.
1 answer
asked by
William wandwi
90 views
The following table shows the estimated equation of demand for ugali in restaurants around mzumbe area based on 69
1 answer
asked by
Evaristi H Paulo
79 views
Standardized coefficient
1 answer
asked by
Elizabeth
76 views
Partial regression coefficient
1 answer
asked by
Elizabeth
69 views
You are given the following model:
Yi = αo + α1X1 + α2X2+ α3X3 + µi. Where α’s = Coefficients of X’s. a) What do these
1 answer
asked by
Ray
87 views
2. You are given the following model:
Yi = αo + α1X1 + α2X2+ α3X3 + µi. Where α’s = Coefficients of X’s. a) What do
1 answer
asked by
Star
85 views
Why do we have to multiple regression model?
1 answer
asked by
Tomvanny
82 views
Describe the following functional forms of a regression model clearly explaining under
what circumstances they can be suitably
1 answer
asked by
Evaristi Paulo
83 views
In estimating a multiple regression model, does it matter if the model is linear in
parameters?Variables?Or both linear in
1 answer
asked by
Evaristi Paulo
90 views
What is the difference between the R-square and the adjusted R-square? Do we need to
use the adjusted R-square when the R-square
1 answer
asked by
Evaristi Paulo
76 views
Explain the meaning and use of:
a)Standardized/Betacoefficients. b)Step wise regression,Forward selection,and Back warde
1 answer
asked by
Evaristi Paulo
79 views
Explain the meaning and use of:
i)Partial regression coefficients ii)Partial correlation
1 answer
asked by
Evaristi Paulo
106 views
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