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I need help solving this problem-example-1
User Rweng
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1 Answer

4 votes

Answer:

First option, incorrect....

Explanation:

This is because the interval is either below or above 26.8 by 0.6

-+ means

26.8 + 0.6 = 27.4

26.8 - 0.6 = 26.2

The confidence interval % can change

- The second option states 28 but that is not in the interval

- The third option is somewhat right but the parameter should be emphasized how confident you are

- The last option is wrong since it has the word "every young" when the initial sentence was the mean

User Pravsels
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5.5k points