Base times height and you have your answer
Answer:
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.
The lower end of the interval is the sample mean subtracted by M. So it is 1000 - 1.96 = 998.04 mm
The upper end of the interval is the sample mean added to M. So it is 1000 + 1.96 = 1001.96 mm
What is your question I will answer it if I can
Answer:
B. 2 1/2
Step-by-step explanation:
Hope this helps!
4.5
3
5
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Find the length of x= 3