5-11.
Positive 5 minus negative 11=
11-5=6
Now is 11 greater or 5, 11 is. And what is the integer of 11? A negative.
Therefore, the answer is -6.
The total change in yards the team lost was 11
Answer:
Water flows into a tank according to the rate
Water flows into a tank according to the rate F(t) = (6+t)/(1+t), and at the same time empties out at the rate E(t) = ln (t+2)/(t+1), with both F(t) and E(t) measured in gallons per minute.
Step-by-step explanation:
Answer:
D. 31
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 .
That is z with a pvalue of , so Z = 1.96.
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.
A previous study indicated that the population standard deviation is 2.8 days.
This means that
How large a sample must be selected if the company wants to be 95% confident that the true mean differs from the sample mean by no more than 1 day?
This is n for which M = 1. So
Rounding up, at least 31 people are needed, and the correct answer is given by option D.