The answer to this question is: <span>groups have equal and balanced composition.
</span>Which means that each groups in experimental research are not displaying the too mcuh difference in term of average characteristics.
This will make sure that the data that acquired during the research are stable and can be trusted (not affected by a special variance)
Answer:
$31,000
Explanation:
The computation of the cash collected from customers is shown below:
Cash collected from customers = Sales + Decrease in accounts receivable
= $30,000 + $1,000
= $31,000
We simply added the sales and the Decrease in accounts receivable so that the accurate amount can come
All other information which is given is not relevant. Hence, ignored it
Answer:
In 1980
Explanation:
Year Salary Percentage Salary Increase CPI Increase
1970 $12,000 - -
1980 $24,000 100 50
1990 $36,000 50 83.3
As can be seen in the table, the Professor's salary increase from 1970 to 1980 was twice as much as the CPI increase during the same period.
On the contrary, his salary increase from 1980 to 1990 was significantly less than the CPI increase during the same period.
Therefore, the professor's salary was highest in 1980.
