Make me questions on Testing Hypothesis: Null and Alternative hypotheses

QuizÂ by Vincent Villasante

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10 questions
• Q1
What is a null hypothesis?
A hypothesis that predicts a significant difference between specified populations or variables
A hypothesis that is always rejected
A hypothesis that is proven to be true
A hypothesis that states there is no significant difference between specified populations or variables
30s
• Q2
What is an alternative hypothesis?
A hypothesis that is always rejected
A hypothesis that states there is no significant difference between specified populations or variables
A hypothesis that predicts a significant difference between specified populations or variables
A hypothesis that is proven to be true
30s
• Q3
Which type of hypothesis is tested first?
Alternative hypothesis
Neither
Both are tested simultaneously
Null hypothesis
30s
• Q4
What is a Type I error?
Failing to reject a false null hypothesis
Rejecting a true null hypothesis
Failing to reject a true null hypothesis
Rejecting a false null hypothesis
30s
• Q5
What is a Type II error?
Failing to reject a false null hypothesis
Rejecting a true null hypothesis
Rejecting a false null hypothesis
Failing to reject a true null hypothesis
30s
• Q6
What is the significance level typically set at?
1.00
0.05
0.10
0.01
30s
• Q7
What is statistical power?
The ability of a test to incorrectly accept a false null hypothesis
The ability of a test to incorrectly reject a true null hypothesis
The ability of a test to correctly reject a false null hypothesis
The ability of a test to correctly accept a true null hypothesis
30s
• Q8
What is the formula for calculating power?
alpha + beta
beta - alpha
1 + alpha
1 - beta
30s
• Q9
What is the formula for calculating Type I error probability?
1 - alpha
alpha
beta
1 - beta
30s
• Q10
What is the formula for calculating Type II error probability?
beta
alpha
1 - beta
1 - alpha
30s

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