True or false: Because the value of ¯x seldom equals µ, and because the value of ¯x varies from one sample to the next, we need to study the sampling distribution of ¯x .
A. |
B. |
How many samples do we need to take in order to estimate the sampling distribution of ¯x?
A. |
B. |
C. |
D. |
Typically, how many ¯x’s are contained in the sampling distribution of ¯x?
A. |
B. |
C. |
Why do we approximate the sampling distribution of ¯x rather than create the actual sampling distribution of ¯x?
A. |
B. |
C. |
If we were to take a sample to estimate the parameter of interest, in context what is that parameter?
A. |
B. |
C. |
How many samples are we going to take?
A. |
B. |
C. |
Does this sample mean ¯x = $28.22 constitute a sampling distribution of ¯x?
A. |
B. |
Is the list of ¯x’s on the bottom right of the slide an estimated sampling distribution of ¯x?
A. |
B. |
In constructing the histogram of ¯x’s, we began with circles. What did each circle represent?
A. |
B. |
C. |
Fill in the blank: The center of the estimated sampling distribution of ¯x in red on the right is ___________ the mean of population of closing stock prices displayed in blue on the left.
A. |
B. |
C. |
Fill in the blank: The spread of the estimated sampling distribution of ¯x in red on the right is ___________ the spread of population of closing stock prices displayed in blue on the left.
A. |
B. |
C. |
Fill in the blank: The shape of the estimated sampling distribution of ¯x in red on the right is ___________ the shape of population of closing stock prices displayed in blue on the left?
A. |
B. |
C. |
Do you think the center of the sampling distribution of ¯x created from samples of size 16 will be different from $26?
A. |
B. |
Fill in the blank: The center of the estimated sampling distribution of ¯x in red on the right is ___________ the mean of population of closing stock prices displayed in blue on the left.
A. |
B. |
C. |
Fill in the blank: The spread of the estimated sampling distribution of ¯x in red on the right is ___________ the spread of population of closing stock prices displayed in blue on the left.
A. |
B. |
C. |
Fill in the blank: The shape of the estimated sampling distribution of ¯x in red on the right is ___________ the shape of population of closing stock prices displayed in blue on the left?
A. |
B. |
C. |
Fill in the blank: The mean of the sampling distribution of ¯x created from samples of size 4 is ______________ the mean of the sampling distribution of ¯x created from samples of size 16.
A. |
B. |
C. |
Fill in the blank: The spread of the sampling distribution of ¯x created from samples of size 4 is ______________ the spread of the sampling distribution of ¯x created from samples of size 16.
A. |
B. |
C. |
Fill in the blank: The shape of the sampling distribution of ¯x created from samples of size 4 is ______________ the shape of the sampling distribution of ¯x created from samples of size 16.
A. |
B. |
C. |
What happens to the means of the four sampling distributions of ¯x created from samples of size 4, 16, 32 and 64 as sample size increases?
A. |
B. |
C. |
What happens to the spreads of the four sampling distributions of ¯x created from samples of size 4, 16, 32 and 64 as sample size increases?
A. |
B. |
C. |
What happens to the shape of the four sampling distributions of ¯x created from samples of size 4, 16, 32 and 64 as sample size increases?
A. |
B. |
C. |
How will we compute probabilities on ¯x?
A. |
B. |