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# Correlation HELP

• From Mathematics, Statistics
• Due on 08 Jan, 2016 12:39:00
• Asked On 07 Jan, 2016 05:43:25
• Due date has already passed, but you can still post solutions.
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Scenario:

To prepare for this Assignment, recall that in Week 1 you imagined you were a researcher interested in determining if student intelligence is related to self-esteem. Now imagine that 10 individuals participated in your study and the raw data are given here:

Participant

Self-Esteem Score

IQ

1

3.2

100

2

4.1

140

3

2.2

95

4

3.0

112

5

2.6

130

6

2.0

99

7

5.0

118

8

4.8

121

9

3.7

129

10

4.4

138

Assignment:

To complete this Assignment, submit by Day 7 your answers to the following. Based on the scenario, use SPSS to determine if self-esteem is related to intelligence in your sample by computing a correlation. Save and submit both the SPSS data and output files.

•   Before computing the correlation, state either a one-tailed or two-tailed, alternative hypothesis and the corresponding null hypothesis in words (not formulas).

•   Based on the hypotheses you stated, explain whether you should conduct a one-tailed or two-tailed test. Provide a rationale for your choice.

•   Identify what the correlation coefficient (r) is for this data set.

•   State the degrees of freedom and explain how it is calculated.

•   Identify the p value.

•   Explain whether you should retain or reject the null hypothesis. Provide a rationale for your decision.

•   Describe the direction and strength of the relationship between self-esteem and intelligence.

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## [Solved] Correlation And Regression

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• Submitted On 08 Jan, 2016 08:49:45
Subject : Probability and Inferential Statistics Assignment Title: Correlation And Regression Compilation Date: dd/mm/yyyy   Question 1) Imagine a situation in which you would like to predict an outcome. Solution 1) The spending of a person is affected by the earning, so we would like to know the spending of a person by using the earning data of that person. Question 2) Think about why you would choose to use regression rather than correlation. Solution 2) Correlation only tells the size and direction of relationship between two variables, but regression analysis gives us the regression equation, which can be used to make predictions. Question 3) Why is prediction more important than simply describing a relationship? Solution 3) The prediction is more important because o...
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## [Solved] Application: Correlation Study: Intelligence and Self-Esteem

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• Submitted On 09 Jan, 2016 04:24:48
Application: Co...
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