Point Estimate and Unbiased Estimator

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
Used 1+ times
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is a point estimate?
average of sample values
average of population values
a single value that represents the unknown sample statistic
a single value that represents the unknown population parameter
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The scores of a random sample of 100 high school students on a standardized mathematics test in school A gave a mean of 78 and a standard deviation of 20. What is the best point estimate of the true average score in this standardized mathematics test?
20
78
95
100
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A point estimate of a population consists of how many numbers?
1
2
10
infinite
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the point estimate for the interval (-5 , 13)?
13
4
9
-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A statistic used to estimate a parameter is an ____________ if the mean of its sampling distribution is equal to the value of the parameter being estimated.
unbiased estiamtor
biased estimator
highly variable
less variable
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which best describes the sampling distribution shown below.
Unbiased Estimator
Biased Estimator
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When the mean of a sampling distribution is the same as that of the population, we say that
it is an unbiased estimator of the population
it is an unbiased estimator of the statistic
it is a low variability estimator of the population
it is a biased estimator of the population
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