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7.1 Sampling Distributions - Burns Flashcards | StudBud
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7.1 Sampling Distributions - Burns
7.1 Sampling Distributions - Burns
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StudBud Administration
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Review for Chapter 7 Statistics test.
Flashcards
11 cards
F
Practice quiz
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Host live
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Questions
11
Answers
1
A college basketball player makes 80 free throws. She attempted 100 shots.
p hat =
0.2
0.5
0.8
0.2266
2
which will have the
greatest
spread/variability
a sample size of 10, 100, 1000
100
1000
they will all have the same
10
3
How cold is it?
Ice cold
Not cold, I'm from Russia
mucho frio
freezing
4
A survey conducted asked whether or not the action of roach disk was effective.
79% agreed.
sample
population
statistic
parameter
5
The symbol for the mean of a sample
ẋ ( x bar)
μ
6
Which of the following are measures of spread
all of the above
IQR
range
standard deviation
7
The symbol for the proportion of a sample statistic
p
p hat
8
To reduce the variability of estimates from a simple random sample
increase the bias
use a count, not a percent
use a larger sample
use a smaller sample space
9
Which of the following is correct?
statistics must be based on a simple random sample
parameters describe sample characteristics
the population is a subset of the sample
parameters describe population characteristics
10
spread
of the sampling distribution will always equal the size of the population for any sample
True
False
11
The variability of a statistic is described by
the vagueness in the wording of the question
the spread of its sampling distribution
the amount of bias present
probability calculations
