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April 24, 2014

Search: statistics/correlation relations

Number of results: 8,760

statistics
Given the following scatter diagram , the sample correlation coefficient r: Has a positive linear correlation Has a negative linear correlation. Has little or no correlation. Looks close to + 1.00
Thursday, August 19, 2010 at 6:40pm by Karen

Statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Thursday, November 8, 2012 at 9:35am by John

statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Wednesday, November 14, 2012 at 1:02pm by joey

statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Thursday, November 15, 2012 at 10:26am by joey

Statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Friday, November 16, 2012 at 10:34am by John

Statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Sunday, November 18, 2012 at 10:23am by John

Statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Monday, December 17, 2012 at 11:14am by Jill

Statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Tuesday, December 18, 2012 at 10:56am by Jill

Statistics
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.3?
Wednesday, July 4, 2012 at 7:07pm by Jane

Statistics
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of − 1.34?
Tuesday, October 11, 2011 at 8:21pm by robyn

Algebra
2. Find the value of x^3 +2x^2 -3 when x =3 Answer-42 12. What type of correlation would you expect between the number of minutes a candle burns and the height of the candle? a. no correlation b. positive correlation c. negative correlation d. equal correlation Answer-c 13. ...
Sunday, August 7, 2011 at 5:06pm by lizzie

Correlations
Which type of correlation would you expect to see between the distance traveled and the time it takes to travel that distance? A. positive correlation B. negative correlation C. no correlation idk why this question is confusing me, but it is
Monday, November 11, 2013 at 11:20pm by hermes

algebra
Which type of correlation would you expect to see between the distance traveled and the time it takes to travel that distance? A. positive correlation B. negative correlation C. no correlation idk why this question is confusing me, but it is
Tuesday, November 12, 2013 at 12:25am by hermes

statistics in psychology
11. Make up a scatter diagram with 10 dots for each of the following situations: (a) perfect positive linear correlation, (b) large but not perfect positive linear correlation, (c) small positive linear correlation, (d) large but not perfect negative linear correlation, (e) no...
Monday, July 25, 2011 at 10:25am by desiree

statistics
calculate both the pearson and spearman correlation coefficient for the data below. state whether ther are significant? writ a brief statement to explain the results generated by each correlation. self-esteem 10.00, 9.00,8.00,7.00,7.00,6.00,6.00,6.00,4.0,4.00. grades 83.00,97....
Sunday, April 24, 2011 at 7:03pm by ryee

Economics
Please correct if I have stated the right correlation to the following relationships: a) volume of auto traffic and auto accident rate -> 0 correlation b) pesticide and crop yield -> negative correlation c) consumption and GDP -> positive correlation
Tuesday, January 25, 2011 at 9:45pm by Anonymous

Psychology Statistics
2 For a sample of n = 20 individuals, how large a Pearson correlation is necessary to be statistically significant for a two-tailed test with  = .05? 3 The Pearson correlation is calculated for a sample of n = 25 individuals. What value of df should be used to ...
Friday, April 26, 2013 at 8:19am by Chioma

statistics
A professor is interested in knowing the correlation, if any, of students’ scores on the first and second exams given in his class. Test 1 Test 2 92 86 90 87 89 85 82 90 88 79 92 90 100 92 91 84 Is there a significant correlation? Explain its statistical significance, if any.
Sunday, February 12, 2012 at 8:09pm by John

math
I need a definition for this constant rate of change when graphing in mathematics and for Positive and Negative correlation and also what the pattern is in this a) 1000, 100, 10, 1 I'll give you a definition for positive and negative correlation. Correlation is a linear ...
Wednesday, January 10, 2007 at 5:21pm by austin

statistics
A government researcher wants to conduct a study to determine if there is a correlation between social security numbers and income. He collects the paired data from a random sample of 100 people. Should the methods of this chapter be used with the linear correlation ...
Monday, July 22, 2013 at 9:39pm by ky

Statistics
1.What is the p value (“significance level”)? What does this p value mean? 2.How does the n (sample size) of this sample affect the r and p values? 3.Is there a relationship between assertiveness and whether one holds anger “in”? Descriptive Statistics Mean Std. Deviation N ...
Wednesday, June 16, 2010 at 3:59am by Donald

Statistics!!!
b. The correlation between the number correct on a math test and the time it takes to complete the test is -.45. Test whether this correlation is significant for 80 children at the .05 level of significance. Choose either a one-or two-tailed test and justify your choice.
Monday, July 8, 2013 at 4:21pm by Ethel

Math-Algebra II
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of − 1.34? The only thing I know is that it represents a negative correlation. Please shed any light you can.
Wednesday, January 26, 2011 at 10:25pm by Michelle

college statistics
if the correlation co-efficient is o.32 what is the sign of the slope regression line as the correlation co efficient decreases from 0.78 to 0.71 do the oints of the scatter plot move toward the regression line or away from it
Saturday, May 26, 2012 at 10:19am by melba

statistics
If the correlation coefficient is -0.54, what is the sign of the slope of the regression line? - As the correlation coefficient decreases from 0.86 to 0.81, do the points of the scatter plot move toward the regression line, or away from it
Thursday, October 4, 2012 at 11:01am by mom

math
interpret an r value of -0.82. a)strong negative correlation B)weak negative correlation C)strong positive correlation D)no correlation
Friday, November 13, 2009 at 12:01pm by princess

Statistics
foofy computes the correlation between an individual's physical strength and his or her college grade poing average. Using a computer, the correlation for a sample of 2000 people is r(1998)=+.08, p=<.0001. she claims this is a useful tool for predicting which college ...
Sunday, July 10, 2011 at 9:58am by K

statistics
For problems 12 to 14, do the following: (a) Make a scatter diagram of the scores; (b) describe in words the general pattern of correlation, if any; (c) figure the correlation coefficient; (d) figure whether the correlation is statistically significant (use the .05 ...
Saturday, January 8, 2011 at 4:11pm by kamelia

statistics
For problems 12 to 14, do the following: (a) Make a scatter diagram of the scores; (b) describe in words the general pattern of correlation, if any; (c) figure the correlation coefficient; (d) figure whether the correlation is statistically significant (use the .05 ...
Saturday, January 8, 2011 at 4:11pm by kamelia

Statistics
Why do we need to distinguish between strong and weak correlation of data sets using best-fit lines? When a correlation has been established between the two data sets, how is it linked to causality? Please provide examples to support your answer.
Tuesday, June 1, 2010 at 7:09pm by immanuel

math
Construct a scatter plot for the given data. Determine whether there is a positive linear correlation, negative linear correlation, or no linear correlation.
Sunday, December 6, 2009 at 12:18pm by jen

Statistics in Psychology
A researcher finds that the correlation between variable A and variable B is r= 5 1.20. She also finds that the correlation between variable C and variable B is r= 5 2.40. Which relationship is scientifically more useful and by how much?
Monday, February 10, 2014 at 1:18pm by Annie

social studies
Although the Chesapeake and New England colonies differed in many ways, relations with Native Americans followed a similar course in both regions. Why? What were the biggest factors in relations between the two sides? Did relations change over time and why?
Saturday, September 10, 2011 at 7:55pm by Tim

Math
Jade counted the number of the students on each sports time at her school and the number of wins the team had last season. If she displays her data on a scatter plot, what type of relationship will she most likely see between the number of students on a team and the number of ...
Tuesday, October 18, 2011 at 8:45pm by Please help

statistics
The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Calculate the correlation coefficient r.
Wednesday, September 28, 2011 at 6:05pm by milly

statistics
Do you think there is a correlation between CEO salaries and the degree of success of a company? If you were to take a sample of companies with comparable size, market capitalization, and product category, and plot CEO salaries against the net profit of their respective ...
Saturday, December 17, 2011 at 6:45pm by Mark

Statistics
In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. The table shows the survey results. Using a web-calculator, obtain the appropriate correlation coefficients. Number of...
Saturday, February 5, 2011 at 4:48pm by SHelia

statistics
Research reports a correlation of +0.8 between math achievement and math aptitude it also reports a correlation of -0.8 between math achievement and a math anxiety. Which interpretations is most c?orrect
Wednesday, September 5, 2012 at 1:28am by Gee

Statistics
Calculate according Permutation and Correlation: 8 8 7 6 8 7 6 5 P P P P C C C C 3 4 6 1 3 5 2 0
Saturday, April 9, 2011 at 4:44pm by Pavlos Cs

statistics
find the value for the correlation coefficient r. x 5 1 4 2 3 y 5 10 12 4 8
Wednesday, April 29, 2009 at 10:43am by yorkie16

statistics
What does it mean when we say, "Correlation is not a causality?"
Sunday, August 9, 2009 at 12:37am by Bulldog

Statistics
The value of the correlation coefficient can be between 0 and 1.
Tuesday, May 17, 2011 at 11:20pm by Matt

statistics
The value of the correlation coeficient can be between 0 and 1.
Thursday, May 19, 2011 at 11:24am by jessica

statistics
. A professor is interested in knowing the correlation, if any, of students’ scores on the first and second exams given in his class. Test 1 Test 2 92 86 90 87 89 85 82 90 88 79 92 90 100 92 91 84 Is there a significant correlation? Explain its statistical significance, if any...
Sunday, February 12, 2012 at 8:10pm by John

statistics
Select the best interpretation of the correlation coefficient r = 0.
Thursday, May 19, 2011 at 11:10pm by Eric

Statistics
Select the best interpretation of the correlation coefficient r = -.87
Saturday, May 21, 2011 at 12:11am by Scott

Statistics
If the correlation coefficient is 0.790, what is the explained variation? A. 37.6% B. 62.4% C. 79% D. 21%
Sunday, December 11, 2011 at 10:47pm by Ashleigh

Statistics
The value of the correlation coefficient can be between 0 and 1.True or false?
Wednesday, November 7, 2012 at 9:20pm by jassi

statistics/psych
Find TWO media examples of two types of correlations (explained below). You will have to do some research to find these. Next: (1) Find one media example (don�t make up your own) of a correlation that could be argued to be spurious (third variable). Explain your media ...
Wednesday, November 16, 2011 at 6:36pm by ashley

STATISTICS
A) If a regression experiment has correlation coefficient r= 0.75, what precent of total variation is explained by the regression? B) if 85% of total variation is explained by the regression, and there is an inverse relationship between y and x, then what is the correlation ...
Sunday, April 17, 2011 at 6:12pm by SROBSON

Math Statistics
True or false? The value of the correlation coefficient can be between 0 and 1.
Thursday, May 19, 2011 at 4:53pm by Bill

Statistics
Calculate the Pearson product-moment correlation for the data below. X 3 4 2 1 Y 5 5 3 4
Tuesday, August 28, 2012 at 6:12pm by StudentD

statistics
A correlation of 0 always means there is no relationship between x and y true or false?
Tuesday, September 18, 2012 at 11:21pm by Gee

STATISTICS
Which of the following correlation coefficients is higher? a. -0.68 b. 0.60 c. 0.68 d. a and c e. None of the above a and c right?
Friday, August 30, 2013 at 7:19am by Susie

Statistics
13.19 (a) Generate a correlation matrix for your predictors. Round the results to three decimal places. (b) Based on the correlation matrix, is collinearity a problem? What rules of thumb (if any) are you using? Correlation Matrix F O E A F Floor 1.000 Offices .823 1.000 ...
Monday, October 4, 2010 at 7:42pm by Pat

STATISTICS
True or False? A researcher is interested in studying whether there is a correlation of IQ with health. For this purpose he selected a sample of 261 people and asked them to complete two questionnaires: one for IQ and one for health. After evaluating the questionnaires each ...
Friday, September 6, 2013 at 6:15am by Marian

statistic
Explain the concept of correlation and how to interpret correlation coefficients of 0.3,0, and -0.95
Sunday, August 7, 2011 at 9:57am by Toha

Statistics
Make a scatter diagram with 10 dots showing a perfect positive linear correlation
Wednesday, July 15, 2009 at 3:00am by Anonymous

Math-Statistics
draw scatterplots one for which the pearson correlation coefficient is r=-1 and r=1 Stuck on how to get started
Sunday, October 3, 2010 at 3:42am by noell

social psy
) Researcher wants to look at the correlation between class attendance and grade in class (higher numbers indicating a higher grade). The researcher found the following result r = .82. The correlation coefficient tells researchers two pieces of information, the strength of the...
Monday, October 3, 2011 at 2:23pm by deb

Stats
The linear correlation coefficient is a numerical value that ranges from -1.00 to +1.00. Describe in a sentence or two the meaning of each of these correlation coefficients: a) -1.00 b) +1.00
Thursday, October 20, 2011 at 11:57am by Jennifer

STAT
Calculate SP (the sum of products of deviations) for the following scores. Note: Both means are decimal values, so the computational formula works well. X Y 0 2 0 1 1 0 2 1 1 2 0 3 Assume a two-tailed test with  .05. (Note: The table does not list all the possible df values...
Sunday, March 3, 2013 at 11:30pm by Tracy

Statistics
A student wonders if tall women tend to date taller men than do short women. She measures herself, her dormitory roommate, and the women in the adjoining rooms; then she measures the next man each woman dates. Here are the data (heights in inches): Men (x) 67 62.1 66.9 63.3 72...
Tuesday, September 6, 2011 at 12:58am by gandakho

statistic
what type of correlation would you expect to exist between people's height and their shoe size? My answer is a positive correlation.
Thursday, July 12, 2012 at 6:25pm by bria

Statistics
Suppose a study found a correlation coefficient r = -0.61 between the gender of a worker and their income. What can you conclude?
Tuesday, January 4, 2011 at 7:03am by Lisa

Statistics
True or False: If the value of the correlation, r, is zero then there is no association between the two quantative variables.
Thursday, December 1, 2011 at 2:48pm by Jay

statistics
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 coefficient is :
Sunday, May 19, 2013 at 4:43am by anand nanda

Statistics
A quiz consists of 10 multiple choice questions. Each question is marked either “right” or “wrong.” Each right answer gets 5 points, and 1 point is taken off for each wrong answer. The correlation between the number of right answers and the number of wrong answers is.... The ...
Friday, March 15, 2013 at 12:46pm by Emily

statistics
Please Help! My book and instructor are no help. Please help me understand why I need to make a scatter diagram, when dealing with bivariate data, and how to find SS(x), SS(y), SS(xy), and r. I have all the formulas, but don't understand. Thanks! I dont know that the diagram ...
Tuesday, August 30, 2005 at 9:45pm by Rebecca

american history
Was it Ivy Lee or Henry Ford that pioneered the field of corporate public relations? Ive read that Ivy is considered one of the founding fathers of the public relations but then I also read that Henry was the first major industrialist to use the public relations concepts!
Thursday, September 27, 2012 at 11:01pm by Shawna

STOR
Each of the following statements contain a blunder. Explain in each case what is wrong. a) There is a high correlation between the age of American workers and their occupation. b) we found a high correlation (r=1.19) between students rating of faculty teaching and ratings made...
Thursday, September 6, 2012 at 7:16pm by ami

statistics
What particular measure of correlation would be most appropriate for use with two variables measured at an ordinal level?
Thursday, August 30, 2012 at 5:00pm by Pat

Statistics
The linear correlation coefficient, r, is a numerical measure of the strength of the relationship between two variables representing quantitative data.
Tuesday, May 17, 2011 at 3:54pm by EJ

Statistics Help Please
A sample of eight observations of variables x and y is shown below: x 5 3 7 9 2 4 6 8 y 20 23 15 11 27 21 17 14 Find the value of coefficient of correlation, r. a) - 0.991 b)0.872 c)- 0.512 d)0.942
Sunday, March 29, 2009 at 4:47pm by Stuart

Statistics!!!
c. The correlation between number of friends and grade point average (GPA) for 50 adolescents is .37. Is this significant at the .05 level for a two-tailed test?
Monday, July 8, 2013 at 4:21pm by Ethel

Discrete Math
Which of these relations on {0, 1, 2, 3} are equivalence relations? Justify the relation(s) that are not equivalent. R1: {(0,0), (1,1), (2,2), (3,3)} R2: {(0,0), (1,1), (1,3), (2,2), (2,3), (3,1), (3,2), (3,3)} R3: {(0,0), (0,1), (0,2), (1,0), (1,1), (1,2), (2,0), (2,2), (3,3...
Tuesday, February 8, 2011 at 3:48pm by Laurey

statistics
In baseball, is there a linear correlation between batting average and home run percentage? Let x represent the batting average of a professional baseball player. Let y represent the home run percentage (number of home runs per 100 times at bat). Suppose a random sample of ...
Sunday, December 19, 2010 at 6:18pm by stephanie

Statistics
True or false? The linear correlation coefficient, r, is a numerical measure of the strength of the relationship between two variables representing quantitative data.
Thursday, May 19, 2011 at 4:49pm by Bill

Statistics
Calculate a linear regression, the residuals, and the correlation between two variables using the following info: number of people:12,14,15,18,20,16,14,13,18,19,20,22 and cost of drinks:24,30,36,38,65,44,36,30,39,76,80,85
Thursday, May 30, 2013 at 8:12pm by Kathryn

STATS
X 3, 5, 6, 8, 9, 10, 12, 14, 15 Y 30,33,34,36,37,40, 50, 60, 70 Calculate Linear Correlation Coefficient r Use significance level 0.05 and Appendix Table A-6 to make decision about linear correlation between x and y.
Tuesday, March 30, 2010 at 12:28am by Mary

statistics
Assuming that the correlation between IQ scores and GPA scores is +.87, explain what this means.
Monday, July 25, 2011 at 5:31pm by redd

Psy 285
Ice cream melths when heated is this causation or correlation? Money is the rot of all evil is this causation or correlation? Please help have no clue:(
Monday, December 8, 2008 at 8:50pm by Julissa

Statistics 15.59
Computer database GROWCO describes the characterisitics of 100 companies identified by Fortune as the fastest growing. Two of the variables listed are revenue and net income (millions of dollars) for the most recent four quarters. Determine the linear regression equation ...
Wednesday, June 16, 2010 at 12:16am by Julia Brown

Statistics
how do you find equation of the least-squared line (line of best fit) from 2-vars stats and the correlation?
Thursday, October 29, 2009 at 7:16pm by Bob

us history
((AN ERA OF LIMITS 1969-1980)) How were the relations between the United States and the Soviet Union different during this era? How were the relations the same?
Wednesday, June 22, 2011 at 8:25pm by K

Business Statistics
Given the least squares regression line = -2.88 + 1.77x, and a coefficient of determination of 0.81, the coefficient of correlation is: A) -0.88 B) +0.88 C) +0.90 D) –0.90 I picked C +0.90
Sunday, March 15, 2009 at 7:50pm by Stuart

Labor Relations
Please explain the labor relations process and the phases in labor relations process
Friday, November 26, 2010 at 1:00pm by Holly

HUMAN RELATIONS, PART 1
The main reason self-confidence is important in human relations is because
Wednesday, September 26, 2012 at 1:26pm by kristine

Statistics
In reagards to correlation and regression how can that be applied to accounting. I am trying to find some websites where i could apply one of the above to accounting.
Wednesday, April 30, 2008 at 8:40pm by Caryn

statistics
the following sample observations were randomly selected: x: 2,5,6,8,9,11,15 y: 22,23,16,18,19,13,12 a)calculate the correlation coefficient, r b) determine the regression equation c) determine the value of Y when X=20
Monday, November 29, 2010 at 10:33am by skitter

Statistics!!!
a. The correlation between speed and strength for 20 women is .567. Test these results at the .01 level using a one-tailed test.
Monday, July 8, 2013 at 4:20pm by Ethel

Mat101
5. Which of the following are functions? The last two problems, i.e., b & c, are multi part relations consider all parts when determining whether or not these relations are functions. Explain your reasoning for a, b, and c. a. f(x) = x + 3 b. f(x) = 73 if x>2 otherwise f(x...
Tuesday, November 30, 2010 at 8:58am by Samantha Joseph

human relations
The main reason self-confidence is important in human relations is because
Thursday, February 25, 2010 at 4:01pm by Anonymous

human relations
a amjor obstacle to developing good human relations skills is that
Wednesday, May 19, 2010 at 12:59am by tiffany

MAT 101
5. Which of the following are functions? The last two problems, i.e., b & c, are multi part relations consider all parts when determining whether or not these relations are functions. Explain your reasoning for a, b, and c. a. f(x) = x + 3 b. f(x) = 73 if x>2 otherwise f(x...
Thursday, February 25, 2010 at 2:02pm by Lawrence

MATH
What type of coorelation does this haved) a middle school student's weight and height from birth to present--- NO COORELATION A correlation indicates the degree of linear relationship between two variables. A positive (+) correlation indicates that both variable increase (or ...
Thursday, May 24, 2007 at 1:01pm by Erin

Psychology
Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows. Person Dexterity Anxiety 1 1 10 2 1 8 3 2 4 4 4 -2 (c) figure the correlation coefficient; (d) figure ...
Monday, September 19, 2011 at 8:36pm by summer

biostatistic
Is this statement true or false: when calculating correlation coefficient between two continous variables, the scale on which the variables are measured affect the value of the correlation coefficient.
Tuesday, December 11, 2012 at 5:31pm by nono

statistics
These data were generated using the equation y = 2x + 1. A scatter diagram of the data results in five points that fall perfectly on a straight line. x 0 1 2 3 4 y 1 3 5 7 9 (a) Find the correlation coefficient.
Sunday, May 26, 2013 at 1:53pm by DeeDee

Math Site
Is there an online site that talks about Linear Relations thoroughly. Could you please post links to some. I tried going to mathisfun. c o m , because that is usually the only site which explains everything well and fits everything into my head; unfortunately, linear relations...
Monday, April 19, 2010 at 8:56pm by Sara

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