
Understanding Confidence Intervals for Two Proportions

Interactive Video
•
Mathematics, Science, Social Studies, Education
•
10th - 12th Grade
•
Hard

Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main topic of the assignment discussed in the video?
Teachers' job satisfaction
Confidence interval for two proportions
Juniors vs. Seniors going to prom
Nurses' work-life balance
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sample proportion of teachers with a second job?
0.15
0.48
0.32
0.21
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which condition checks if the sample size is less than 10% of the population?
Large counts condition
Z interval condition
10% condition
Random and independent condition
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the critical value used for a 95% confidence interval in this context?
2.58
1.96
1.64
1.28
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to calculate the confidence interval in the video?
ANOVA
Two-proportion Z interval
Chi-square test
T-test
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the lower bound of the confidence interval calculated in the video?
0.021
0.007
0.0007
0.2193
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What conclusion is drawn about the proportions of teachers and nurses with a second job?
Proportion of teachers is higher
Proportion of nurses is higher
No significant difference
Proportions are equal
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