What is the purpose of hypothesis testing in statistics?
Significance Tests and Decision Making

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To prove that a hypothesis is true beyond any doubt
To make decisions based on data from a sample
To calculate the mean of a dataset
To graphically represent data
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In hypothesis testing, what is the significance level (alpha) typically used?
0.1
0.05
0.5
1.0
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How can the risk of committing a Type I error be reduced?
Increase the significance level (alpha)
Decrease the significance level (alpha)
Increase the sample size
Decrease the sample size
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A procedure using a sample statistic to make a decision about the validity of a claim.
Significance Level
Significance Test
Confidence Interval
Confidence Level
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When conducting a significance test for the difference in proportions, why do we pool the data when finding standard error?
Because we like to swim
Because we assume p1 = p2 in Ho
Because the sample sizes are always equal
To be safe and make sure we don't underestimate the standard error
Because we don't the standard deviation.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A level of significance of 5% means:
There's a 5% chance we're wrong
There's a 5% chance we'll be wrong if we fail to reject the null hypothesis
There's a 5% chance we'll be wrong if we reject the null hypothesis.
There's a 5% chance you're right
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In hypothesis testing, if the p-value is greater than the significance level (alpha), what is the appropriate decision?
Reject the null hypothesis.
Provide evidence for the alternative hypothesis.
Fail to reject the null hypothesis.
Increase the sample size and retest.
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