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danielweldon1234
01.12.2021 •
Mathematics
To create the design shown, shade the triangle formed by the three midsegments of the triangle. Then repeat the process for each unshaded triangle.
What is the perimeter of the shaded triangle in Stage 1? units
What is the total perimeter of all the shaded triangles in Stage 2? units
What is the total perimeter of all the shaded triangles in Stage 3? units
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Ответ:
Given : A market researcher states that she has 95% confidence that the mean time customers spent on that website per day is between 19 and 59 minutes.
To Find :Suppose that the population mean time customers spent on that website is 26 minutes a day. Does this value of the population mean help to show that the confidence interval estimate is correct?
Solution :
Confidence interval at 95% = 19 to 59
We are given that the population mean time customers spent on that website is 26 minutes a day
So, Mean must be the mid point of the 95% confidence interval
Mid point =![\frac{19+59}{2}=39](/tpl/images/0221/8811/fb2cd.png)
Since 26 is not the mid point of the 95% confidence interval
So, this value of the population mean help to show that the confidence interval estimate is incorrect.