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Regression Analysis
Page 6
Questions (480)
The National Opinion Research Center administered the General Social Survey (GSS) in 2010 to persons in the United States who
1 answer
asked anonymously
44 views
A set of n = 15 pairs of X and Y scores has SSX = 10, SSY = 40, and SP = 30. What is the slope for the regression equation for
3 answers
asked by
Annie
1,888 views
I have a word problem here.
A batter hits a fly ball. A scout in the stands makes the following observations. Time (in secs) .75,
3 answers
asked by
Student
1,637 views
A manager wishes to determine the relationship between the number of miles (in hundreds of miles) the manager's sales
3 answers
asked by
Angel White
1,533 views
A set of X and Y scores has SSX = 20, SSY = 10, and SP = 40. What is the slope for the regression equation?
4.0 2.0 0.25 0.50
3 answers
asked by
Annie
1,507 views
This data was taken from an unbiased study of ice cream sales.%0D%0A%0D%0A(2 points)%0D%0APut responses in the correct input to
1 answer
asked by
Eli
151 views
Use a graphing calculator to find the equation of the line of best fit for the data in the table below. Find the value of the
1 answer
asked anonymously
23 views
Fill in the blank: When using the least squares method, the line of best fit is the line that _______.
A. minimizes the total
1 answer
asked anonymously
37 views
Find the required linear model using least-squares regression. The table below gives the total sales (in billions of dollars)
1 answer
asked anonymously
42 views
Suppose a researcher gathered survey data from 19 employees and asked the employees to rate their job satisfaction on a scale
1 answer
asked by
Tony
1,316 views
3. You obtain the following regression statistics for the relationship between defect rate and volume at one of your plants. You
2 answers
asked by
john
1,274 views
Is is possible for the regression equation to have none of the actual (observed) data points located on the regression line?
2 answers
asked by
Julia
1,257 views
Consider the following multiple regression results. Using a= .05 as the significance level, identify all statistically
2 answers
asked by
GG
1,191 views
In a study of caffeine and stress, college students indicate how many cups of coffee they drink per day and their stress level
2 answers
asked by
NAD
1,170 views
In a simple linear regression you are told that the estimate of the slope coefficient was 0.9 and that the "t-statistic" for
3 answers
asked by
Sisca
1,145 views
Use the exponential regression equation that best fits the data (2, 7), (3,10), (5, 50), and (8, 415) to estimate the value of y
1 answer
asked anonymously
55 views
Using the line of best fit, what is the best approximation for the hourly rate of an individual with 8 years of experience?
(1
4 answers
asked anonymously
173 views
Using the line of best fit, what is the best approximation for the hourly rate of an individual with 8 years of
1 answer
asked by
Eli
144 views
What clever transformation in logistic regression makes an S-shaped curve linear?
Group of answer choices The square root
1 answer
asked by
Mark
64 views
How does logistic regression estimate coefficients?
Group of answer choices By minimizing the sum of squared residuals. By
1 answer
asked by
Mark
41 views
For which of the following cases could you use logistic regression?
Group of answer choices To predict the probability that a
1 answer
asked by
Mark
38 views
y= ae^(bt)sin(kt)
Use a sine regression to determine k, the period of oscillation of this system. State the regression equation
3 answers
asked by
Georgia
1,116 views
Regression analysis was applied between sales data (in $1,000s) and advertising data (in $100s) and the following information
1 answer
asked by
Yazzy
1,114 views
True or False, In simple linear regression analysis, if the error terms exhibit a positive or negative autocorrelation over
1 answer
asked by
Zack
1,044 views
Could someone answer this question so I understand it. The answer is 28.0, but i'd like to know how to do it. Thanks
Randomly
1 answer
asked by
JAY
1,026 views
Are these questions below true or false? I am stuck. I think 1 is true and 3 is false
1. In Regression Analysis if the variance
1 answer
asked by
Logan
1,036 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
1 answer
asked by
grant
1,030 views
Using the line of best fit, what is the best approximation for the hourly rate of an individual with 8 years of experience?
(1
1 answer
asked anonymously
112 views
12.22 A regression was performed using data on 16 randomly selected charities in 2003. The variables were Y = expenses (millions
2 answers
asked by
Kim
976 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,
2 answers
asked by
Robbie
944 views
a mathematics professor wishes to analyze the relationship between the number of papers graded by his department's student
1 answer
asked by
Anonymous
949 views
Anyone know how to get me started?
Calculate b0 and b1 and make an equation of regression line for the set of data given in Table
3 answers
asked by
Statistics DUMB
910 views
A set of X and Y scores has Mx=4, SSx=10, MY=5, SSY=40, and SP=40. What is the
regression equation for predicting Y from X? a,
1 answer
asked by
Robbie
908 views
9. The regression line below gives the relationship between quiz grades and test grades. TG = 40.448 + 5.175QG
where TG = test
1 answer
asked by
Hayley
888 views
A sociologist is interested in the relations between x = number of job changes and y = annual salary (in thousands of dollars)
1 answer
asked by
Jeff
840 views
Using the following Minitab output write the straight line (least squares) equation and
the correlation coefficient. The
1 answer
asked by
BettieLee
832 views
The president of a company that manufactures car seats has been concerned about the number and cost of machine breakdowns. The
1 answer
asked by
GG
990 views
Sales of a video game released in the year 2000 took off at first, but then steadily slowed as time moved on. The table below
1 answer
asked by
David
804 views
Compute the least-squares regression line for predicting
from x and y given the following summary statistics. Round the slope and
2 answers
asked by
Sara
734 views
For a regression equation with a positive slope, if a certain X value is above the mean for the X scores, then the predicted Y
2 answers
asked by
Alan
759 views
You are interested in finding out if a student’s ACTscore is a good predictor of their final college grade point average(GPA).
2 answers
asked by
CANDICE
753 views
A test is conducted in 22 cities to see if giving away free transit system maps will increase the number of bus
riders. In a
2 answers
asked by
Anonymous
744 views
Determine the regression line of x+2y-5=0 and 3x+3y-8=0
(i) y on x and (ii) x on y, (iii) Find r using the regression
2 answers
asked by
Deepti
721 views
Use a graphing calculator to find the equation of the line of best fit for the data in the table below. Find the value of the
1 answer
asked by
jam
56 views
Use a graphing calculator to find the equation of the line of best fit for the data in the table below. Find the value of the
1 answer
asked by
jam
41 views
A procedure in regression analysis where Predictor or Independent Variables are coded as 1 or 0 (representing categories) and
2 answers
asked by
C
690 views
Use the following table to answer questions 7 and 8:
This table displays results from a prospective cohort study evaluating meat
3 answers
asked by
Rupal
690 views
I'm trying to work through the proof for
SST = SSM + SSE MEAN = ∑(X)/N SST = ∑((x - MEAN)^2) = ∑(x^2 - 2 * x1 * MEAN +
5 answers
asked by
statstudent
704 views
Assume that the regression equation for the relationship between SAT scores and IQ scores is y = 9 +.105x. What would you expect
1 answer
asked by
candy
688 views
Job Sat. INTR. EXTR. Benefits
5.2 5.5 6.8 1.4 5.1 5.5 5.5 5.4 5.8 5.2 4.6 6.2 5.5 5.3 5.7 2.3 3.2 4.7 5.6 4.5 5.2 5.5 5.5 5.4 5.1
4 answers
asked by
chris
642 views
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