Steps to find the correlation in SPSS
Analyze -> correlate -> Bivariate -> check pearson's -> Ok
We get the following output
Coffee and sleep are negatively correlated with -0.621 coefficient of correlation.
Which implies that more the coffee less the sleep.
We have the following steps for creating a scatter plot:
Graph -> Legacy Dialogue -> Scatter plot -> Simple scatter plot ->X axis(Coffee) Y axis(Sleep) -> ok
We get the following graph
These variables might not be truly correlated a third variable might be at play which may have been the person's ability to be awake.
The regression equation is given as :
Sleep=8.564-0.3963*5=6.58 hours of sleep.
Correlation This assignment will examine your ability to analyze the relationship between two variables, create an...
Consider a two-dimensional scatterplot representing the relationship between two continuous variables. If the correlation coefficient is -1, then: a. All points lie in a straight line with a slope of -1. b. All points lie in a straight line with an unknown negative slope. c. All points do not lie in a straight line but the best fitting regression line has a slope of -1. d. There is a strong positive relationship between the two variables.
Erika Diaz Your name Assignment 10 Correlation, Scatterplot, and Prediction (due 7/30/20 - 1/4/20)(28 pts) 1. A teacher hypothesizes that the more days of school student misses, the worse the student will do on a final exam (possible scores on the exam range from 0 to 20). She obtained a random sample of 12 students. The data are shown below. Student days missed Final exam score 1 3 16 2 2 17 3 5 13 4 8 7 5 4...
In testing for correlation the relationship between two variables, the best fitting line is often call the regression equation and denoted as SELECT ALL A A) B) C) D) What formula is used to compute the slope of this line and its y intercept? E)
A measure of the strength of the relationship between the variables in a linear regression equation that indicates the percentage of the variation in the dependent variable that isa result of the behavior of the independent variable is the regression coefficient correlation coefficient O linear coefficient O coefficient of determination A data mining tool that uses software packages to identify groups in the data that naturally fall together is O association rule learning O summarization clustering O classification Data mining...
A psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Determine the equation of the regression line and graph the line on a scatter plot. Hours without Sleep, x Number of Mistakes, y x y 32 6 38 8 48 13 24 5 46 7 35 6 30 5 34 8 42 12...
Discuss two data characteristics that could invalidate the use of linear correlation and regression to show the relationship between two ratio scale variables.
1. Which of the following is correct? A. In correlation analysis there are two variables and both are dependent B. I n correlation analysis there are two variables and both are independent C. I n regression analysis there are two variables and both are dependent D: In regression analysis there are two variables and both are independent 2. measures the strength of linear association between two variables. A. Regressor B. Regressand C. Correlation coefficient D. None 3. the independent variables....
SPSS: Correlation Use SPSS or Excel to calculate the appropriate correlation coefficient for the following data for “Hours of Exercise” and “Life Satisfaction.” (0 = Not at all satisfied). Provide an APA-style results section write – up. (b) Graph the relationship. HINT: Below you will find instructions for the APA-style write-up. Complete the write-up on a word document and upload the file for submission. Hours of Exercise Life Satisfaction 2 6 0 2 5 13 6 15 1 3 2...
For this assignment I have to analyze the regression (relationship between 2 independent variables and 1 dependent variable). Below is all of my data and values. I need help answering the questions that are at the bottom. Questions regarding the strength of the relationship Model: Median wage (y) = 40.3774 - 2.0614 * Population + 0.0284 * GDP Predictor Coefficient Estimate Standard Error t-statistic p-value Constant B0 40.3774 1.1045 36.558 0 Population B1 -2.0614 0.5221 -3.948 0.0003 GDP B2 0.0284...
I need questions 1-3 & 6-10 answered with shown calculated work. 201 Bivariate Regression and Correlation 6 PROBLEMS General Problems 1. For the following data on 10 persons, construct a scatterplot showing the relationship between age and number of children. and describe the relationship in verbal terms Number o Children (Y) Age Person (i) 42 26 38 23 21 19 79 25 75 67 9 10 2. Using data from 60 adults, a community sociologist wants to estimate an equation...