Answer:
National Association of Colleges and Employers
Therefore, if we were to increase the sample size (n) from 100 to 144, the z score will:
A) increase.
Explanation:
a) Data:
Mean (average) (µ) annual earnings of finance graduates = $52,402
Standard deviation of annual salaries of finance graduates (σ) = $7,000
Sample size of accounting graduates (n) = 100
Sample mean salary = $54,390
If sample size were increased to 144, from 100, what happens to the z score will be:
Calculating z score:
z = (x-μ)/σ
= (54,390 - 52,402)/7,000
= 0.284
Example:
= (58,000 - 52,402)/7,000
= 0.8
b) In statistics, as the sample size is increased from 100 to 144, the sample mean, x, ($54,390) and standard deviation ($7,000) will be closer in value to the population mean, μ, ($52,402) and standard deviation, σ.
