# Stat Significance Unit Review

## Quiz by Jordan Winter

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11 questions

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- Q1When do you accept the null hypothesis?No statistically significant pattern or relationship, and likely the result of a random processStatistically significant pattern or relationship, and likely the result of a random processNo statistically significant pattern or relationship, and highly unlikely the result of a random processStatistically significant pattern or relationship, and highly unlikely the result of a random process30s
- Q2When do you reject the null hypothesisStatistically significant pattern or relationship, and highly unlikely the result of a random processStatistically significant pattern or relationship, and likely the result of a random processNo statistically significant pattern or relationship, and highly unlikely the result of a random processNo statistically significant pattern or relationship, and likely the result of a random process30s
- Q3What is the purpose of a p-value in hypothesis testing?To calculate the power of the testTo estimate the population parameterTo measure the strength of evidence against the null hypothesisTo determine the sample size needed30s
- Q4When conducting a hypothesis test, if the p-value is less than the significance level, what decision is made about the null hypothesis?Increase the significance levelAccept the null hypothesisFail to reject the null hypothesisReject the null hypothesis30s
- Q5In the context of hypothesis testing, what is the null hypothesis often symbolized as?H0H1PX^230s
- Q6What does the alternative hypothesis (Ha) represent in hypothesis testing?The mean of the population under studyThe probability of making a Type I errorA statement that indicates a difference or effectA confirmation of the null hypothesis30s
- Q7When a hypothesis test results in a p-value greater than the significance level, what is the appropriate conclusion?Fail to reject the null hypothesisCome up with a new hypothesisReject the null hypothesisAccept the null hypothesis as true30s
- Q8What Greek letter do we signify significance level with?Alpha (α)Delta (δ)Omega (ω)Gamma (γ)Beta (β)30s
- Q9Which of the following p-values corresponds to a commonly used significance level in hypothesis testing?0.250.500.100.0530s
- Q10If you fail to reject the null hypothesis, do you accept or reject?AcceptReject30s
- Q11If you reject the null hypothesis, do you accept or reject?RejectAccept30s