
Statistical Tests and Analysis Concepts

Interactive Video
•
Mathematics, Science
•
11th - 12th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of a 95% confidence interval?
The range of individual data points
The mean of the population
The median of the population
The mean of the sample data
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor is crucial in determining the smallest sample size for a given margin of error?
The standard deviation
The critical value
The mean of the sample
The median of the sample
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the critical value for a 90% confidence level?
1.96
1.28
1.645
2.33
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the power of a statistical test represent?
The probability of accepting the null hypothesis when it is true
The probability of rejecting the null hypothesis when it is false
The probability of accepting the alternative hypothesis when it is false
The probability of rejecting the alternative hypothesis when it is true
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance level's role in hypothesis testing?
It is the probability of a Type I error
It determines the sample size
It is the probability of a Type II error
It affects the power of the test
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chi-square test for association, what do the degrees of freedom depend on?
The number of variables
The significance level
The sample size
The number of categories in each variable
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a chi-square test, what does a p-value between 0.01 and 0.02 indicate?
No evidence against the null hypothesis
Weak evidence against the null hypothesis
Strong evidence against the null hypothesis
Strong evidence for the null hypothesis
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