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WorksheetsAP Stat Quiz 7.1 Review
Total questions: 13
Worksheet time: 10mins
53.2% of applicants are accepted into UConn. In a sample of 100 UConn applicants, 45 of them were accepted. What is the parameter?
All UConn applicants.
The 100 applicants in the sample.
53.2% acceptance rate.
45% of accepted in sample.
True or False: A statistic used to estimate a parameter is an unbiased estimator if the mean of its sampling distribution is equal to the value of the parameter being estimated.
True
False
True or False: The sampling variability of a statistic is the distribution of values taken by the statistic in all possible samples of the same size from the same population.
True
False
A (a) is a number that describes some characteristic of a population.
A (a) is a number that describes some characteristic of a sample.
The histograms show the results of three simulations of a sampling distribution of a sample mean. For each simulation, 1,500 samples of size n were selected from the same population and the sample mean was recorded. The value of n was different for each of the three simulations.
Which of the following is the correct ordering of the graphs from least value of n to greatest value of n ?
A, C, B
B, A, C
B, C, A
C, A, B
C, B, A
The statistic x̅ is used as an estimator for which of the following?
n
s
σ
μ
z
