Answer:
The minimum sample size that should be taken is 62.
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.
If we want to be 90% confident that the sample mean is within 1 word per minute of the true population mean, what is the minimum sample size that should be taken
This is n when
. So





The minimum sample size that should be taken is 62.
Answer:
1/12
Step-by-step explanation:
1/3 x1/4=1/12
Answer:
hi
Step-by-step explanation:
i think 96(probably)
have a nice day
-2.1 because each dash represents 0.1
Answer:
8
Step-by-step explanation:
I believe that the answer is 8