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OLEGan [10]
2 years ago
14

A linguist at a large university was studying the word length of papers submitted by students enrolled in humanities programs. f

rom a random sample of 25 papers, the linguist counted the number of words used in each paper. the 95 percent confidence interval was calculated to be (20,995, 22,905)
SAT
1 answer:
V125BC [204]2 years ago
6 0

The correct interpretation regarding the confidence interval is that we are 95% confident that the mean number of words used in all papers is between 20,995 and 22,905.

<h3>What is the interpretation of a x% confidence interval?</h3>

It means that we are x% confident that the population parameter(mean/proportion/standard deviation) is between a and b

In this problem, the 95% confidence interval for the number of words in the sample of 25 papers is (20,995, 22,905), hence the interpretation is that we are 95% confident that the mean number of words used in all papers is between 20,995 and 22,905.

More can be learned about confidence intervals at brainly.com/question/25890103

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Jack invested $500 in the shares of a company x and $750
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Assuming he sold all the shares of both companies for $600 and $900 respectively. what the ratio of return on investment from company x to that from company y will be is : 2:3

First step is to calculate x return on investment

x return on investment = $600 - $500

x return on investment= $100

Second step is to calculate y return on investment

y return on investment= $900 - $750

y return on investment= $150

Now let determine the ratio of return on investment from company x to that from company y

Using this formula

Ratio of return on investment=x return on investment/y return on investment

Let plug in the formula

Ratio of return on investment=100/150

Ratio of return on investment=2/3

Ratio of return on investment=2:3

Inconclusion assuming he sold all the shares of both companies for $600 and $900 respectively. what the ratio of return on investment from company x to that from company y will be is : 2:3

Learn more here:

brainly.com/question/24807055

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