Problem 1. A study was done to investigate if number of friends is a predictor of physical health, as measured by a monthly symptom checklist (0-50). A sample of 57 participants was used. Assume an alpha level of .05 and a two-tailed test. What is the correct statistical test to evaluate the hypothesis? Multiple linear regression one-way independent ANOVA two-way independent ANOVA Simple linear regression Pearson Correlation Coefficient Select the appropriate alternative hypothesis. Number of friends is a predictor of physical health symptoms. Number of friends is not related to physical health symptoms. p =/ 0 At least one pair of means is different
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Problem 1. A study was done to investigate if number of friends is a predictor of physical health, as measured by a monthly symptom checklist (0-50). A sample of 57 participants was used. Assume an alpha level of .05 and a two-tailed test.
What is the correct statistical test to evaluate the hypothesis?
|
Multiple linear regression |
||
|
one-way independent ANOVA |
||
|
two-way independent ANOVA |
||
|
Simple linear regression |
||
|
Pearson |
-
Select the appropriate alternative hypothesis.
Number of friends is a predictor of physical health symptoms.
Number of friends is not related to physical health symptoms.
p =/ 0
At least one pair of means is different
-
What is dfregression equal to?
What is dfresidual equal to?
What is the critical F test statistic?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
