
Hypothesis Testing and Errors
Interactive Video
•
Mathematics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of the video tutorial?
Calculating the mean of a sample
Understanding power and type II error in hypothesis testing
Learning about standard deviation
Exploring different types of distributions
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the context of the video, what is the known parameter of the population?
Population mean
Sample mean
Population standard deviation
Sample standard deviation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance level used in the hypothesis test?
0.10
0.09
0.01
0.05
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
For what values of Z will the null hypothesis be rejected?
Z = 0
Z < -1.34
Z > 0
Z > 1.34
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the rejection region reexpressed in terms of the sample mean?
X bar > 50
X bar >= 45.31
X bar < 50
X bar <= 45.31
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the shaded area in the visualization represent?
Probability of a type I error
Probability of a type III error
Probability of a type II error
Probability of a correct decision
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the probability of committing a type II error when the true mean is 43?
0.745
0.255
0.09
0.5
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