AP Stats Unit 5
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Medium
Anthony Clark
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19 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
These symbols represent the mean and standard deviation for which of the following distributions?
The Population
The Sample
The Sampling Distribution
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The mean number of pets owned by the population of students at a large high school is 3.2 pets per student with a standard deviation of 1.7 pets. A random sample of 16 students will be selected and the mean number of pets for the sample will be calculated. What is the mean of the sampling distribution of the sample mean for samples of size 16 ?
1.7
3.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The Gallup Poll asked a random sample of 1785 adults whether they attended church during the past week. Let p-hat be the proportion of people in the sample who attended church. A newspaper report claims that 40% of all U.S. adults went to church last week. Suppose this claim is true.
What is the mean of the sampling distribution of p-hat?
0.4
0.44
0.56
0.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
28% of all KHS students believe Tuesday will be snow day. You take a sample of 50 students and find that 15 of them believe Tuesday will be a snow day. What does 50 represent?
n
P
phat
standard deviation
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this a probability distribution?
No, the sum of p(x) does not equal 1.
Yes, all p(x) are between 0 and 1.
No, all p(x) are not between 0 and 1.
Yes, the sum p(x) is 1.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
D
E
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is this a probability distribution?
No
Yes
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