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A study on addiction found a positive correlation between time of cravings and time of relapse...

A study on addiction found a positive correlation between time of cravings and time of relapse (r = .51) in a sample of 20 addicts.

State a null and alternative hypothesis for this study.

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Answer #1

A null hypothesis is a hypothesis that asserts that there is no statistical significance between the two variables. Thus the null hypothesis, in this case, will be; the time of cravings and the time of relapse are not related.   

Since in an alternative hypothesis, we state there is a statistically significant relationship between two variables. The alternate hypothesis, in this case, will be; time of cravings and time of relapse are related. If the craving is high the chances of a relapse are also high.

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