Homework SourseThe mean annual salary for all public classroom teachers is
The mean annual salary for all public classroom teachers is assumed to be $49,000. The standard deviation of annual salary for all public classroom teachers is assumed to be $9,200. A random sample of 300 public classroom teachers is selected from which it is found an average salary of $45,000 with a standard deviation of $10,000. In this given scenario, which value is the sample standard deviation, s?
$49,000
$10,000
$9,200
$45,000
| A. | $49,000 | |
| B. | $10,000 | |
| C. | $9,200 | |
| D. | $45,000 |
Solution
The mean annual salary for all public classroom teachers is assumed to be $49,000. The standard deviation of annual salary for all public classroom teachers is assumed to be $9,200. A random sample of 300 public classroom teachers is selected from which it is found an average salary of $45,000 with a standard deviation of $10,000. In this given scenario, which value is the sample standard deviation, s?
A.
$49,000
B.
$10,000
C.
$9,200
D.
$45,000
the sample standard deviation, s is the SD of 300 public classroom teachers is selected from which it is found standard deviation is $10,000.
| A. | $49,000 | |
| B. | $10,000 | |
| C. | $9,200 | |
| D. | $45,000 |
