The CLT ensures that if the sample size is greater than or equal to 30...

the sampling distribution of x-bar will be normally distributed

The variability of a statistic is shown through

the spread of its sampling distribution

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Ch. 7 Review

10 termsStudBud Administration

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Questions 10

Answers

1
If the parameter is ______, a sampling distribution helps us ______ the parameter.
unknown,estimate
validate,known
known,validate
estimate,unknown
2
72% of registered voters said they had voted,records show that only 56% voted.Which of the following is true of the #s?
72%=statistic 56%=parameter
72%=sample 56%=population
72%=population 56%=sample
72%=parameter 56%=statistic
3
The CLT ensures that if the sample size is greater than or equal to 30...
that all distributions will be normal
the sampling distribution of x-bar will be normally distributed
the population will be normally distributed
the sampling distribution of p-hat will be normally distributed
4
What are the mean and standard deviation of the sampling distribution?
0.27 ; 0.1039
0.27 ; 0.0888
0.30 ; 0.0888
0.30 ; 0.1039
5
Can you ever create a complete sampling distribution?
True
False
6
To reduce the variability of estimates from a simple random sample, you should
use a smaller sample
use a non-random sample
use an average, not a percent
use a large sample
7
If the parameter is _____, a sampling distribution helps us _____ the parameter.
validate,known
known,validate
unknown,estimate
estimate,known
8
The variability of a statistic is shown through
probability calculations
the vagueness in the wording of the question used to collect the data
the spread of its sampling distribution
the amount of bias present
9
What does SOCS stand for?
statistics,outside,characteristics,spread
skewed,outliers,center,sampling
shape,outliers,center,spread
spread,objective,control,standard deviation
10
Which of the following produces an unbiased estimator?
using sample random samples
using an average,not a %
using larger sample sizes
using smaller sample sizes

Ch. 7 Review Flashcards | StudBud

Ch. 7 Review

10 termsStudBud Administration

Imported from external platform

Flashcards10 cardsFPractice quizPHost liveL

Questions 10

Answers

1
If the parameter is ______, a sampling distribution helps us ______ the parameter.
unknown,estimate
validate,known
known,validate
estimate,unknown
2
72% of registered voters said they had voted,records show that only 56% voted.Which of the following is true of the #s?
72%=statistic 56%=parameter
72%=sample 56%=population
72%=population 56%=sample
72%=parameter 56%=statistic
3
The CLT ensures that if the sample size is greater than or equal to 30...
that all distributions will be normal
the sampling distribution of x-bar will be normally distributed
the population will be normally distributed
the sampling distribution of p-hat will be normally distributed
4
What are the mean and standard deviation of the sampling distribution?
0.27 ; 0.1039
0.27 ; 0.0888
0.30 ; 0.0888
0.30 ; 0.1039
5
Can you ever create a complete sampling distribution?
True
False
6
To reduce the variability of estimates from a simple random sample, you should
use a smaller sample
use a non-random sample
use an average, not a percent
use a large sample
7
If the parameter is _____, a sampling distribution helps us _____ the parameter.
validate,known
known,validate
unknown,estimate
estimate,known
8
The variability of a statistic is shown through
probability calculations
the vagueness in the wording of the question used to collect the data
the spread of its sampling distribution
the amount of bias present
9
What does SOCS stand for?
statistics,outside,characteristics,spread
skewed,outliers,center,sampling
shape,outliers,center,spread
spread,objective,control,standard deviation
10
Which of the following produces an unbiased estimator?
using sample random samples
using an average,not a %
using larger sample sizes
using smaller sample sizes