25-foot long board is to be cut into two parts. The longer part is one foot more than twice the shorter part. How long is each p
1 answer:
You might be interested in
<h3>Answer: Choice B</h3>
No, this is not a plausible value for the population mean, because 5 is not within the 95% confidence interval.
====================================================
Explanation:
The greek letter mu is the population mean. It has the symbol which looks like the letter 'u' but with a tail at the front or left side.
The question is asking if mu = 5 is plausible if the researcher found the 95% confidence interval to be 5.2 < mu < 7.8
We see that 5 is <u>not</u> in that interval. It's a bit to the left of 5.2
Since mu = 5 is not in the interval, it's not a plausible value for the population mean.
Have we ruled it out with 100% confidence? No. Such a thing is not possible. There's always room for (slight) error. The researcher would need to do a census to be fully confident; however, such practices are very time consuming and expensive. This is the main reason why statistics is important to try to estimate the population with a sample.
Our answer is 
Our greatest common factor, or GCF, is
, so when we factor is out, our divide each term by , we get our answer. To check this, we can multiply the back across the parenthesis and see if we get the same result as our initial question.
Hope this helped! :))
Our greatest common factor, or GCF, is
Hope this helped! :))