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Hypothesis Testing and Confidence Intervals
Interactive Video
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of this video tutorial?
Understanding correlation between variables
Calculating standard deviation for a population
Hypothesis testing for two means with matched pairs
Hypothesis testing for two independent samples
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance level used in this hypothesis test?
0.05
0.10
0.001
0.01
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of this video, what does 'mu D' represent?
The mean of the male word count
The mean of the female word count
The mean value of the differences in word counts
The total word count for all participants
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the null hypothesis in this test?
The mean difference is not equal to zero
The mean difference is equal to zero
The mean difference is less than zero
The mean difference is greater than zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is a t-test used in this hypothesis test?
Because the data is normally distributed
Because the population standard deviation is unknown
Because the sample size is very large
Because the population standard deviation is known
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a p-value greater than the significance level indicate?
Reject the null hypothesis
Fail to reject the null hypothesis
Accept the alternative hypothesis
The test is inconclusive
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the confidence interval tell us in this context?
The probability of the null hypothesis being true
The exact mean difference between male and female word counts
The total word count for all participants
The range in which the true mean difference lies with a certain confidence
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