Answer:
True.
Step-by-step explanation:
If we have for a sample of size n=25 a sample variance of 400, the standard error can be written as:
This way of calculating the standard error is the same used for estimating the standard deviation of the sample means for samples of size n=25.
A) there are 3 times 1/3 in each hour: so we have to multiply the original number by 3: 3*13=39!!
b)
so, 13 pages in 1/3 of an hour
for this we have to divide the time needed for the 13 pages by 13:
so each page requires
of an hour, which is approximately 1.5 minutes.
5×3=15 so 15÷ 3=5, The answer to this question would be is 5.
ANSWER: x will equal 3 I hope this helps
