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WorksheetsHypotesis testing quiz
Total questions: 16
Worksheet time: 27mins
______ is about using our collected data to draw conclusions to a larger population
Descriptive statistics
Inferential Statistics
The null and alternative hypothesis can be the same.
Yes
No
A __________ occurs if you accept the null hypothesis when it is false.
Type I error
Type II error
A __________ occurs if you reject the null hypothesis when it is true.
Type I error
Type II error
Suppose the P-value for a hypothesis test is 0.0237. Using a = 0.05, what is the appropriate conclusion?
Reject the null hypothesis
Reject the alternative hypothesis
Fail to reject the null hypothesis
Fail to reject the alternative hypothesis
When do you use a t-value instead of a z-value?
When n < 30
When n ≥ 100
When ≥ 10000
When n ≤ 10
H0: μ = k
H1: μ > k
Left-tailed test
Right-tailed test
When p-value is greater than alpha we:
Reject Ho
Fail to reject Ha
Fail to reject Ho
Reject Ha
Accept Ha
Ha = 18.4
Ha > 18.4
Ha < 18.4
Ha ≠ 18.4
The Associated Press found that 730 of 1000 randomly selected adults preferred to watch movies at home rather than at a movie theater. Is there convincing evidence that the majority of adult Americans prefer watching movies at home? State the alternative hypothesis.
Ha: p = .50, where p is the true proportion of adult Americans who prefer watching movies at home.
Ha: p < .50, where p is the true proportion of adult Americans who prefer watching movies at home.
Ha: p > .50, where p is the true proportion of adult Americans who prefer watching movies at home.
H0: μ = k
H1: μ ≠ k
Left-tailed test
Two-tailed test
Right-tailed test
What is the power of a statistical test?
The probability of making a Type I error
The ability of a statistical test to detect a significant difference when one exists
The probability of making a Type II error
The ability of a statistical test to reject the null hypothesis when it is false.
The claim that needs to be established is set as
Null hypothesis
Alternate hypothesis
P-value is defined as the probability of obtaining the result as extreme given the null hypothesis is true
True
False
The outcome of hypothesis testing is
Reject the null hypothesis
Fail to reject the null hypothesis
Accept the null hypothesis
Reject the alternate hypothesis
