Purchase Solution

Coefficient of Correlation and Effects

Not what you're looking for?

Ask Custom Question

1. The following sample observations were randomly selected. Determine the coefficient of correlation. Interpret.

X: 4 5 3 6 10
Y: 4 6 5 7 7

2. Can you please share with me some examples of strong and weak correlation coefficients? What are the variables?

Purchase this Solution
Solution Summary

The coefficient of correlation is determined. The strong and weak correlation coefficients are examined.

Solution Preview

1. The following sample observations were randomly
selected. Determine the coefficient of correlation.
Interpret.

X: 4 5 3 6 10
Y: 4 6 5 7 7

Can you please share with me some examples of strong and weak correlation coefficients? What are the variables?

Solution:

We find the Coefficient of Correlation using two methods. One by using step by step hand calculation using formula. The second method would be using Excel Data Analysis (Computer solution).

Method - ...

Purchase this Solution
Free BrainMass Quizzes
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.

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.

View More Free Quizzes
Related BrainMass Solutions

  • Effects of TV viewing on reading scores

    b.Find the value of the correlation coefficient. Is the correlation positive or negative? Why? c.Test the significance of the correlation coefficient at alpha = 0.05. d.

  • Correlation Related Events Make Sense Viewed by the Martian

    Answer: the correlation coefficient is high, positive, and variable effects are likely casual. The number of doctors and the occurrences of natural disasters do vary up and down together. But the Martian reversed the order of cause.

  • NPV and Cash Flow

    f) What is Computer Whiz Company had a correlation coefficient with the economy of +.5 and American Micro-Technology had one of -.1? Which of the companies would give you the best portfolio effects for risk reduction?

  • Regression analysis in SPSS

    Dependent Variable: Achievement The regression coefficient for interaction term is significant with p value less than 0.05. Thus student's motivation and gender interact in their effects on achievement.

  • Capital investment decision - Gibson Appliance

    What if Genetic Technology Co had a coefficient of correlation with the economy of -.2 and Silicon Microchip Co had one of +.5? Which of these companies would give you the best portfolio effects for risk reduction? g.

  • Linear regression, multiple regression, time series

    Coefficient of correlation indicates the direction of relationship and coefficient of determination measures the strength of relationship between the independent and dependent variables.

  • Coefficient of correlation and coefficient of determination..

    188307 Coefficient of correlation and coefficient of determination.. In your own words, describe the concept of correlation, include the coefficient of correlation (r) and the coefficient of determination (r2) in your description.

  • Correlation

      -0.01 Strength of correlation is indicated by coefficient of determination; Coefficient of determination is the square of coefficient of correlation Coefficient of correlation Coefficient of determination

  • Correlation and regression problems in STATDISK

    s explore the effects of these two events on rank correlation. Enter the following data in columns 1 through 3 of the Statdisk, and observe the effect on the spearman rank correlation coefficient. Use a 0.05 significance level.

View More Related Solutions