Question

You believe that people who have higher GPAs began smoking marijuana in younger grades. You want...

You believe that people who have higher GPAs began smoking marijuana in younger grades. You want to test this hypothesis. Identify the independent and dependent variables and develop a hypothesis. What is the best SPSS test based on your hypothesis to analyze your data?

Math   Statistics-And-Probability   
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Answer #1

The independent variable here would be the 'GPA' and dependent variable would be 'Age at which person began smoking marijuana'.

We can do a correlation coefficient test to check if the two variables are strongly related.

In that case the hypothesis would be -

Null Hypothesis - H0 : GPAs and the age at which person starts smoking marijuana are not related.

Alternate Hypothesis -  H1 : GPAs and the age at which person starts smoking marijuana are related.

This can be written mathematically as -

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So, in SPSS we would look for correlation coefficient test for these two variables.

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