Answer:
The minimum sample size is 610.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find M as such
In which is the standard deviation of the population and n is the size of the sample.
Population standard deviation is $6300, so
Suppose we want to determine the minimum sample size required to give us a 95% confidence interval that estimates, to within $500, the average salary of a state employee.
This is n when M = 500. So
Rouding up
The minimum sample size is 610.
Answer:
His extra pay would be of $79.69
Step-by-step explanation:
Assuming that the clerk works regular 40 hour per week, then he has worked 6.25 extra (overtime) hours this week. Then his extra pay for overtime work would be:
6.25 times $12.75 = $79.69
Answer:
what statements?
Step-by-step explanation:
Answer:
1/7 or 0.1428571429
Step-by-step explanation:
10/70 simplifies to 1/7 or 0.1428571429 in decimal form