- Resource Library
- Math
- Probability And Statistics
- Hypothesis Testing
- Confidence Intervals And Hypothesis Testing
Confidence Intervals and Hypothesis Testing
Authored by Anthony Clark
Mathematics
12th Grade
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
20 questions
Show all answers
1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
What is the appropriate critical value to use for your margin of error if you are constructing a 99% confidence interval for 2 proportions?
(a)
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
38 out of 60 randomly selected NJ residents are Yankees fans. 41 out of 70 randomly selected NY residents are Yankees fans. The corresponding 95% confidence interval is (-.1203, .2155). Does this interval indicate that a larger proportion of NJ residents are fans of the Yankees than NY residents?
Yes, because the positive bound is larger than the negative bound.
No, because the interval contains both positive and negative values indicating it could go either way.
No, because the values are less than 95%.
Yes, because 38/60 (.633) is bigger than 41/70 (.586).
3.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
109 randomly selected college students were asked, "Did you select your college because it had a reputation as a 'party school' ?" From those 109, 45 responded yes. At the .05 significance level, what is the correct conclusion after conducting the appropriate hypothesis test to determine if less than half of college students chose their college because it had a reputation as a 'party school'?
P-value is greater than .05, reject Ho and conclude that less than half of students chose their school because it was a party school.
P-value is greater than .05, reject Ha and conclude that more than half of students chose their school because it was a party school.
P-value is less than .05, reject Ho and conclude that less than half of students chose their school because it was a party school.
P-value is greater than .05, fail to reject Ho and conclude that we do not know if less than half of students chose their school because it was a party school.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When conducting a hypothesis test and your p-value is greater than your significance level, what is the appropriate conclusion to make?
Reject Ha
Accept Ho
Reject Ho
Fail to Reject Ho
5.
MATCH QUESTION
1 min • 1 pt
9 out of 25 students bring their lunch to school. Construct a 90% Confidence Interval for the proportion of students who bring their lunch to school.
Identify the variable
1.645
Z
.64
p
.36
n
25
q
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sanjay is researching if female students are more or less likely than male students to have received extra credit at a large university. He takes a random sample of 300 students. Sanjay used this sample to build a 95% confidence interval to estimate the difference between the proportion of females and males receiving extra credit. The resulting interval was 0.05±0.07. Based on the interval, what do we know about the corresponding P-value and conclusion at the α=0.05 level of significance?
The P-value is less than α=0.05, and he cannot conclude that there is a difference between the proportions.
The P-value is less than α=0.05, and he should conclude that there is a difference between the proportions.
The P-value is greater than α=0.05, and he cannot conclude that there is a difference between the proportions.
The P-value is greater than α=0.05, and he should conclude that there is a difference between the proportions.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sanjay is researching if female students are more or less likely than male students to have received extra credit at a large university. He takes a random sample of 300 students. Sanjay used this sample to build a 95% confidence interval to estimate the difference between the proportion of females and males receiving extra credit. The resulting interval was 0.05±0.07. Based on the interval, what do we know about the corresponding P-value and conclusion at the α=0.05 level of significance?
The P-value is less than α=0.05, and he cannot conclude that there is a difference between the proportions.
The P-value is less than α=0.05, and he should conclude that there is a difference between the proportions.
The P-value is greater than α=0.05, and he cannot conclude that there is a difference between the proportions.
The P-value is greater than α=0.05, and he should conclude that there is a difference between the proportions.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?
