Calculus and Above

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In a simple regression analysis (with n equals 10), the
In a simple regression analysis (with n equals 10), the explained variation equals 141.21 and the unexplained variation equals 81.62. Find the coefficient of determination. a. 0.677 b. 0.634 c. 0.664 … read more
Kofi
PhD in Statistics
Ph.D.
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Above 1. Given the significance level 0.025, the F-value for
Above 1. Given the significance level 0.025, the F-value for the degrees of freedom, df = (7,3) is A. 14.62. B. 8.45. C. 27.67. D. 5.89. 2. Which of the following statements are true regarding the sim… read more
Ryan
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Bachelor's Degree
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Pen Foster Exam 250714RR1. Another name for the residual
Penn Foster Exam 250714RR 1. Another name for the residual term in a regression equation is A. residual analysis. B. random error. C. homoscedasticity. D. pooled variances. 2. A chi-square test for in… read more
Ryan
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Bachelor's Degree
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For RRJha (or anyone else available),Heres a few statistics
For RRJha (or anyone else available), Here's a few statistics questions I'm looking to get some answers to and I need your insight on how to solve them. TABLE 12-6 One of the most common questions of … read more
R.R. Jha
Bachelor's Degree
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I need help with these problems… whomever helps Ill be extra
I need help with these problems… whomever helps I'll be extra generous with the tip. NEED FOR SEPT 19th** PART 1 4. Calculate SP (the sum of products of deviations) for the following scores. NOTE both… read more
Chirag
Master's Degree
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"For Ryan Only -- Willing to wait". . According to
"For Ryan Only -- Willing to wait". . According to the following graphic, X and Y have _________. strong negative correlation virtually no correlation strong positive correlation moderate negative cor… read more
Ryan
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Bachelor's Degree
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FOR JOHN ONLY: Given the following regression output., answer
FOR JOHN ONLY: Given the following regression output., answer the following questions. PREDICTOR COEF SE COEF T P CONSTANT 84.998 1.863 45.61 0.000 X1 2.391 1.200 1.99 0.051 X2 -0.4086 0.1717 -2.38 0.… read more
Math-John
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1. Given the linear correlation coefficient r and the sample
1. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correla… read more
Stevewh
Teacher
Bachelor's Degree
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Cost Accountant is developing a regression model to predict
2. A cost accountant is developing a regression model to predict the total cost of producing a batch of printed circuit boards as a function of batch size (the number of boards produced in one lot or … read more
R.R. Jha
Bachelor's Degree
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1. Given the linear correlation coefficient r and the sample
1. Given the linear correlation coefficient r and the sample size n, determine the critical values of r and use your finding to state whether or not the given r represents a significant linear correla… read more
Trigeoscal
College Math Professor
Master's Degree
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A suburban hotel derives its gross income from its hotel operations
For John Only- Due date for assignment is 20 SEP 2012. Supporting data for questions 1,2, and 3 can be found at the following link: http://www.mediafire.com/?a6b6h10mwpqs9sq 1. A suburban hotel derive… read more
Math-John
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4. A family doctor is interested in examining the relationship
4. A family doctor is interested in examining the relationship between a patient's age and t total cholesterol. He randomly selects 14 of his female patients and obtains the data presented in the scat… read more
unvrs
Lecturer of Mathematics
Master's Degree
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Given the linear correlation coefficient R and the sample N
Question 1 of 20 Given the linear correlation coefficient r and the smaple size n, determine the critical values of r and use your finiding to state whether or not the given r represents a significant… read more
Ryan
Engineer
Bachelor's Degree
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Last set of questions for tonight. 1)In a simple regression
Last set of questions for tonight. 1)In a simple regression analysis(where y is a dependent and x and independent variable), if the y intercept is positive, then? A)There is a positive correlation bet… read more
Ryan
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Bachelor's Degree
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24) Michelle used a sample of 50 U.S. cities to estimate the
24) Michelle used a sample of 50 U.S. cities to estimate the relationship between crime, or annual property crimes per 100,000 persons, and income, or median income per capita. Her estimated regressio… read more
Chirag
Master's Degree
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14) Sound engineers studied factors that might affect the output,
14) Sound engineers studied factors that might affect the output, in decibels, of a rock concert's speaker system. The desired level of significance was a = .05. The results of their ANOVA tests are s… read more
Chirag
Master's Degree
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22) What parametric test is equivalent to the nonparametric
22) What parametric test is equivalent to the nonparametric Spearman's rank test? A. T-test of correlation coefficient B. T-test of two sample means C. T-test of one sample mean. D. T-test of two samp… read more
SusanAthena
Master's Degree
Master's Degree
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1. The director of marketing at Reeves Wholesale Products is
1. The director of marketing at Reeves Wholesale Products is studying monthly sales. Three independent variables were selected as estimators of sales: regional population, per capita income, and regio… read more
Chirag
Master's Degree
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