
Understanding P-Values and Hypothesis Testing
Interactive Video
•
Mathematics
•
10th - 12th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of discussing the p-value in the context of comparing heights?
To assess if there is a statistical difference in heights
To calculate the average height of American men
To determine the exact height of basketball players
To find out if basketball players are taller than average men
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the null hypothesis state in the given example?
Basketball players are shorter than average men
Basketball players are taller than average men
The average height of basketball players is 1.77 meters
The average height of basketball players is unknown
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it unlikely for a sample to have an exact mean of 1.77 meters?
Due to errors in measurement
Because the sample size is too small
Because basketball players are always taller
Due to natural variability in sampling
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a p-value indicate in hypothesis testing?
The exact mean of the population
The average height of the sample
The likelihood of observing a sample mean as extreme as the observed one
The direction of the difference in means
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a sample deviates by 9 centimeters from the population mean, what does a p-value of 0.03 suggest?
The sample mean is exactly 1.77 meters
The population mean is incorrect
There is a 3% chance of observing such a deviation or more
The sample is exactly 9 centimeters different
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance level commonly set at in hypothesis testing?
10% or 20%
15% or 25%
1% or 5%
0.1% or 0.5%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a p-value less than 0.05 typically indicate?
The data is not normally distributed
The sample mean is exactly 1.77 meters
The null hypothesis is rejected
The null hypothesis is accepted
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