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AleksandrR [38]
3 years ago
14

P= 14.63 - 0.84 Help me

Mathematics
2 answers:
Blababa [14]3 years ago
6 0

Answer:

P = 13.79

Step-by-step explanation:

14.63 - 0.84 = 13.79

Dmitrij [34]3 years ago
6 0
P = 13.79. I had the same problem
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1: Plot the graph of the equation 2x-3y=6 and 2x+y=-10 and intercept the result.
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A train travels 3.5 kilometers on a straight track with grade of 1 degree 10'. What is the vertical rise of the train distance?
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A researcher is 95% confident that the interval from 5.2 hours to 7.8 hours captures u = the true mean amount of time
igor_vitrenko [27]
<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 \mu 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.

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