Purchase Solution

MCQs: Correlation and Regression

Not what you're looking for?

Ask Custom Question

Please see attached and calculate summary output to answer the following questions:
1/ If the correlation between 2 variables is -.77 which is true.
a/ There is a fairly strong negative linear relationship
b/ An increase in one variable will cause the other variable to decline by 77%

2/Calculate the correlation coefficient between rain on Friday and rain on Saturday variables. which statement is true?
a/ Chance of rain on Saturday is 80%
b/ Correlation coefficient is 21%
c/ Correlation is not statistically significant at 5%level

3/ in order to develop a regression model to predict Saturday attendance
a/ It is impossible to distinguish dependent and independent variables
b/ Friday attendance is independent and Saturday is dependent
c/ Both Friday and Saturday are dependent variables
d/ Both Friday and Saturday attendance is independent variables.

4/ Which is the correct interpretation of the regression slope coefficient for Friday attendance
a/ When attendance increase by 100 average Saturday attendance increase151
b/ When Friday attendance increase by 100 average Saturday attendance increase12.39
c/ When Friday attendance increase by 100 average Saturday attendance increase1513
d/ When Friday attendance increase by 100 average Saturday attendance increase15.13
e/ When Friday attendance increase by 100 average Saturday attendance increase1.51

5/ Which of the following is true
a/ The effect of Friday attendance and Saturday rain variables are statistically significant at 5% level.
b/ All the independent variables are statistically significant at 5% level
c/ The effect of Friday attendance variables is statistically significant at 5% level
d/ None of the independent variables are statistically significant at 5% level
e/ The effect of Friday attendance and the interaction variables are statistically significant at 5% level.

6/ If Friday attendance is 18,394 and is expected to rain on Saturday, the predicted Saturday attendance is approx.
a/ 14700
b/ 40300
c/ 17900
d/ 29100
e/19700.

Please show your calculations.

Attachments
Purchase this Solution
Solution Summary

The solution provides answers to multiple choice questions on correlation and regression. Relevant excel workings are also included.

Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

View More Free Quizzes
Related BrainMass Solutions

  • Regression and Correlation Assumptions

    115795 Regression and correlation 1) When is regression used? What are the assumptions of Linear Regression? 2) What is correlation? How does it differ from regression? What is the interpretation of the correlation coefficient?

  • MCQs on regression, budgeting, Accounting

    Regards This posting contains an answer to the following MCQs on Managerial accounting

  • Real life applications of regression

    This posting provides several real life examples of correlation and regression.

  • Discussion on Causation, Correlation and Regression

    572682 Discussion on Causation, Correlation and Regression I need some help in conceptualizing basic statistic concepts: (1)Briefly defines correlation and regression.

  • Regression: Predictor and Criterion Variables

    550889 Regression: Predictor and Criterion Variables Please help with the following. Explain the relationship between correlation and regression. What do the two approaches have in common, and how are they different?

  • Correlation and Regression

    Three questions related to correlation and regression answered to the point.

  • Student query: Correlation and regression analysis

    186189 Correlation and regression analysis. QUESTIONS: (a) How does correlation analysis differ from regression analysis? (b) What does a correlation coefficient reveal?

  • Correlation and Regression (Descriptive Statistics)

    233165 Correlation and Regression (Descriptive Statistics) 1. Testing for a linear Correlation: Use the scatterplot and the linear correlation coefficient r to determine whether there is a correlation between the two variables.

  • regression model

    Hello and thank you for posting your question to Brainmass! In a regression model, if every sample point is on the regression line (all errors are 0), then (b) the correlation coefficient would be -1 or 1.

  • Correlation Coefficients

    A regression coeffciient of -1 indicates a perfectly inverse relations, that is, the slope of the regression line is -1 and all the points lie on the line.

View More Related Solutions