Answer:
2240
Step-by-step explanation:
I think you find 3% of 2000 which is 60
Then you multiply that by 4 which is 240
Add it to the 2000
and get 2240
Answer:
log[(c^y)/(r^8)] this is m your answer
Answer:
538 books should be tested.
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 the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
How many books should be tested to estimate the average force required to break the binding to within 0.08 lb with 99% confidence?
n books should be tested.
n is found when
We have that
Rounding up
538 books should be tested.