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- From Mathematics, Statistics
- Due on 08 Jan, 2016 12:39:00
- Asked On 07 Jan, 2016 05:43:25
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- Ca-nurse
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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.

Submit three documents for grading: your text (Word) document with your answers and explanations to the application questions, your SPSS Data file, and your SPSS Output file.

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- Submitted On 07 Jan, 2016 07:48:16

Answer posted by

- NUMBER1TUTOR
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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 3 112
5 2.6 130
6 2 99
7 5 118
8 4.8 121
9 3.7 129
10 4.4 138
Based on the scenario, use SPSS to determine if self-esteem is related to intelligence in your sample by computing a correlation.
Before computing the correlation, state either a one-tailed or two-...

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- Submitted On 08 Jan, 2016 08:49:45

Answer posted by

- DEEPEYES
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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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- Submitted On 09 Jan, 2016 04:24:48

Answer posted by

- Academia
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Application: Co...

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