Null Hypothesis and Hypothesis Application Essay

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CUNE graduate students as intelligent, not as intelligent or more intelligent than graduate students at ABC University?

What is the sample for this study? Cune grad students and ABC grad students

What is the independent variable? (Think about this one carefully!) Education

What are the two levels of the independent variable? 1st level -- Cune; 2nd level -- ABC

What is the dependent variable? Intelligence

How could the DV be measured? Test scores

What is the null hypothesis for this study? The type of education one receives does not impact one's intelligence.

State a directional research hypothesis for this study. Cune graduate students will not have higher intelligence scores than ABC grad students.

QUESTION 6

State a nondirectional research hypothesis for this study. There will be no statistically significant difference between Cune graduate mean test scores and those of ABC grad students.

QUESTION 7

We have set alpha at .05. What does this mean? (Hint - refer to notes for Chapter 13). If the result of statistical analysis is greater than alpha, the findings are not statistically significant. If they are less, then they are statistically significant.

QUESTION 8

1. Once data has been collected for the DV:

1. What is the first descriptive statistic that must be completed in order to complete the inferential test? The mean must be found.

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QUESTION 9

1. 1. What inferential statistical test would be used to compare the two groups? t test

2. Once the test in #1 is completed what do we compare the results to in order to determine if the difference is statistically significant? NOTE: they important point of this question is "to determine if the difference is statistically significant." Compare it to alpha.o5

QUESTION 10

1. If our statistical analysis shows us that there IS a statistically significant difference between the two groups then:

1. What is the relationship between p and alpha? p < alpha

2. We ____reject___ the null hypothesis.

3. We ___accept____ the research hypothesis.

QUESTION 11

1. If our statistical analysis shows us that there is not a statistically significant difference between the two groups then:

1. What is the relationship between p and alpha? p > alpha

2. We ___accept____ the null hypothesis.

3. We ___reject____ the research hypothesis

QUESTION 12

1. We have completed our statistical analysis and have made a Type I error.

1. In terms of our null hypothesis, what this mean? You must state what we did with the null hypothesis and whether the hypothesis was actually true or false. The null hypothesis.....

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