QUESTIONS WITH 100% CORRECT
ANSWERS LATEST VERSION 2025/2026.
What are the 4 steps in hypothesis testing? - ANS 1. state the null and alt hypotheses
2. state the level of significance (alpha)
3. run anaylsis, find the p value and compare it to alpha
4. make a decision!
What does the null hypothesis state? - ANS There is no relationship between variable X and
variable Y .... example: males and females GPA's don't differ
what does the alternative hypothesis state? - ANS the opposite of the null
hypothesis...example: male and females GPA do differ
What is a significance level? - ANS fixed value that we compare with the P-value
critical probability, confidence level, Alpha, probability level selected is typically .05 or .01, too
low to warrant support for the null hypothesis
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