Purchase Solution

Inferential statistics and linear correlation

Not what you're looking for?

Ask Custom Question

A study was conducted with alpha = 0.05 to determine if there is a significant linear correlation between the number of credit hours earned at the time of taking statistics 101 and the grade in the course. Eight pairs of data were collected.

The linear correlation coefficient is y = 0.6777

Pick the correct answer

a. There is a significant linear correlation
b. There is not a significant linear correlation

Determine the proportion of variation in grade that can be explained by the linear correlation between the grade and the number of credit hours earned at the time of taking the course. (round to nearest hundredth).

Purchase this Solution
Solution Summary

This solution identifies the correct relationship of linear correlation and determines the proportion of variation in grade with explanations.

Solution Preview

The correct answer is that there is a significant correlation, because the value of the correlation ...

Purchase this Solution
Free BrainMass Quizzes
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.

Measures of Central Tendency

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

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

  • descriptive statistics versus inferential statistics

    473243 Differentiate between descriptive statistics and inferential statistics 1. Differentiate between descriptive statistics and inferential statistics. Provide an example for each. 2.

  • Correlation coefficient and descriptive statistics

    334100 Correlation coefficient and descriptive statistics Give a brief definition and an example of the following: a. Descriptive Statistics b. Inferential Statistics What does the correlation coefficient r describe? What about r squared?

  • Inferential statistics used in hypothesis tests

    15536 Inferential statistics used in hypothesis tests What inferential statistic would you choose to test the following hypotheses? Briefly explain your answers.

  • Descriptive Statistics and Inferential Statistics

    Inferential statistics tries to make connections in the data. With the same study, inferential statistics would be used to see if there is any correlation between the height of a person and average sleep.

  • Inferential Statistics and Regression Line Determination

    158579 Inferential Statistics and Regression Line Determination Find the best predicted value of y for X = 1, given that the sample linear correlation coefficient = 0.228, y with a line on top = 3, n = 38.

  • Multiple Linear Regression - Job Satisfaction

    • Only the critical elements of your SPSS output: o Research question o H10 (null) and H1a (alternate) hypothesis o Descriptive statistics narrative and properly formatted descriptive statistics table o Scatterplot graph o Inferential APA Results

  • Exploring Inferential Statistics and Their Discontents

    What do inferential statistics allow you to infer? 4. What is the General Linear Model (GLM)? Why does it matter? 5. Compare and contrast parametric and nonparametric statistics. Why and in what types of cases would you use one over the other? 6.

  • Descriptive statistics

    When should you use descriptive and inferential statistics? Give two specific examples of descriptive statistics and two specific examples of inferential statistics.

  • 24 Assorted Statistic Problems

    Solution attaches a .spo and .doc file to answer and explain these 24 assorted statistics problems, covering everything from variance to regression slopes.

View More Related Solutions