Question

DESCRIPTIVE STATISTICS Comparing sample means Sample Word length (number of letters) Sample mean 1 7, 8, 7, 9, 6, 8, 3, 3 2 7, 7, 4, 9, 8, 6, 4, 6 0 3 5, 9, 8, 7, 4, 6, 9, 5 0 (b) Use the table to calculate the range of the sample means. Range of sample means: (c) The students are going to use the sample means to estimate the mean word length in the book. Select all the true statements below. A single sample mean will tend to be a worse estimate than the mean of the sample means. The mean of the sample means will tend to be a worse estimate than a single sample mean. The closer the range of the sample means is to 0, the less confident they can be in their estimate. The farther the range of the sample means is from 0, the less confident they can be in their estimate.

          DESCRIPTIVE STATISTICS
Comparing sample means
Sample Word length (number of letters) Sample mean
1
7, 8, 7, 9, 6, 8, 3, 3
2
7, 7, 4, 9, 8, 6, 4, 6
0
3
5, 9, 8, 7, 4, 6, 9, 5
0
(b) Use the table to calculate the range of the sample means.
Range of sample means: 
(c) The students are going to use the sample means to estimate the mean word length in the book.
Select all the true statements below.
A single sample mean will tend to be a worse estimate than the mean of the sample means.
The mean of the sample means will tend to be a worse estimate than a single sample mean.
The closer the range of the sample means is to 0, the less confident they can be in their estimate.
The farther the range of the sample means is from 0, the less confident they can be in their estimate.

DESCRIPTIVE STATISTICS
Comparing sample means
Sample Word length (number of letters) Sample mean
1
7, 8, 7, 9, 6, 8, 3, 3
2
7, 7, 4, 9, 8, 6, 4, 6
0
3
5, 9, 8, 7, 4, 6, 9, 5
0
(b) Use the table to calculate the range of the sample means.
Range of sample means:
(c) The students are going to use the sample means to estimate the mean word length in the book.
Select all the true statements below.
A single sample mean will tend to be a worse estimate than the mean of the sample means.
The mean of the sample means will tend to be a worse estimate than a single sample mean.
The closer the range of the sample means is to 0, the less confident they can be in their estimate.
The farther the range of the sample means is from 0, the less confident they can be in their estimate.

Added by Donald J.

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