Answer:
a) The confidence interval is
.
Step-by-step explanation:
We have to calculate a confidence interval (CI) of a difference of proportions.
For the existing procedure, the proportion is:

For the new procedure, the proportion is:

To calculate the CI, we need to estimate the standard deviation

For a 90% CI, the z-value is 1.64.
Then, the CI is:

1 thousand and 1 hundred means 1100.
In scientific notation, it's 1.1*10^3
Answer:
The correct answer is option C and D.
C). DC = 6√3
D). AC = 12√3
Step-by-step explanation:
so, you're correct, it is the Food industry, and it went down from 2.7 to 2.5, well, so it really went down 2.7 - 2.5 or 0.2.
well, if we take 2.7 to be the 100% from that row, what is 0.2 off of it in percentage format?

Answer:
In picture...
Step-by-step explanation:
I solved it step by step in picture. U can have a look
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