Stat Significance Unit Review

Quiz by Jordan Winter

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11 questions
• Q1
When do you accept the null hypothesis?
No statistically significant pattern or relationship, and likely the result of a random process
Statistically significant pattern or relationship, and likely the result of a random process
No statistically significant pattern or relationship, and highly unlikely the result of a random process
Statistically significant pattern or relationship, and highly unlikely the result of a random process
30s
• Q2
When do you reject the null hypothesis
Statistically significant pattern or relationship, and highly unlikely the result of a random process
Statistically significant pattern or relationship, and likely the result of a random process
No statistically significant pattern or relationship, and highly unlikely the result of a random process
No statistically significant pattern or relationship, and likely the result of a random process
30s
• Q3
What is the purpose of a p-value in hypothesis testing?
To calculate the power of the test
To estimate the population parameter
To measure the strength of evidence against the null hypothesis
To determine the sample size needed
30s
• Q4
When 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 level
Accept the null hypothesis
Fail to reject the null hypothesis
Reject the null hypothesis
30s
• Q5
In the context of hypothesis testing, what is the null hypothesis often symbolized as?
H0
H1
P
X^2
30s
• Q6
What does the alternative hypothesis (Ha) represent in hypothesis testing?
The mean of the population under study
The probability of making a Type I error
A statement that indicates a difference or effect
A confirmation of the null hypothesis
30s
• Q7
When a hypothesis test results in a p-value greater than the significance level, what is the appropriate conclusion?
Fail to reject the null hypothesis
Come up with a new hypothesis
Reject the null hypothesis
Accept the null hypothesis as true
30s
• Q8
What Greek letter do we signify significance level with?
Alpha (α)
Delta (δ)
Omega (ω)
Gamma (γ)
Beta (β)
30s
• Q9
Which of the following p-values corresponds to a commonly used significance level in hypothesis testing?
0.25
0.50
0.10
0.05
30s
• Q10
If you fail to reject the null hypothesis, do you accept or reject?
Accept
Reject
30s
• Q11
If you reject the null hypothesis, do you accept or reject?
Reject
Accept
30s

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