AP Stat
Quiz
•
Mathematics
•
11th Grade - University
•
Practice Problem
•
Hard
Barbara White
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40 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calculate the confidence interval for the population mean at the given level of confidence: n = 65, σ = 3.14, x = 19.5, c = 0.80
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calculate the confidence interval for the population mean at the given level of confidence: n = 846, σ = 1.04, x = 7.9, c = 0.90
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the confidence level is 90%, what is the associated critical z value (Za/2)?
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
If a sample of 225 students have a mean test score of 90, what is the point estimate?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is required to create a t-distribution?
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
If 656 randomly selected people spend a mean of $86 per week on lunch. What is the best point estimate for the mean amount of money spent per week on lunch for all 656 people?
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Value of t0.025 for a t-distribution with 25 degrees of freedom.
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