Answer:
6
Hector planted 185 flowers in 2 days.there were 5 volunteers,including Hector, who each planted about the same number of flowers
2 answers:
Answer: They planted 925 flowers.
Step-by-step explanation:
Given : Hector planted 185 flowers in 2 days.
There were 5 volunteers,including Hector, who each planted about the same number of flowers.
Then, the number of flowers they planted is given by :-
Number of volunteers x Flower planted by each volunteer
=
Hence, They planted 925 flowers.
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<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.
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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.