Sampling Distribution on Mean and Proportion

Quiz
•
Mathematics
•
12th Grade
•
Hard
Standards-aligned
Anthony Clark
FREE Resource
19 questions
Show all answers
1.
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
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
28% of all Woodrow students believe Monday will be snow day. You take a sample of 50 students and find that 15 of them believe Monday will be a snow day. What does 50 represent?
n
P
phat
standard deviation
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens to the shape of a sampling distribution of sample means as n increases?
It becomes narrower and bimodal.
It becomes narrower and more normal.
It becomes wider and skewed right.
It becomes wider and more normal.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose we have a population that is 49% male. If we take a random sample from that population and determine the percent of our sample that is male, we refer to this proportion as...
p
p-hat
the sample mean
the sampling distribution
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
True
False
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When sampling from a population with proportion p, the distribution of sample proportions (p-hat) will vary. What will be the mean of all possible sample proportions?
p
Tags
(SR.DSR.4.3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
30% of all dogs in a city are micro-chipped. In a sample of 500 dogs, what is the probability that less than 140 dogs are micro-chipped? Select the closest option.
0.25
0.21
0.17
0.13
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