A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percent. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 65 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them.

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Q: .If you are at the 90th percentile in terms of GPA, then 90% of the sample has a lower GPA than you.…

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A: a. The value of the (Pearson's) Correlation Coefficient as shown in this output is 0.9403.

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A:

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Q: If 55% of the books have been signed out, what percent of the books have not been signed out?

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Q: opic pregnancy is twice as likely to develop when the pregnant woman is a smoker as it is when she…

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A:

Q: A Gallup survey showed that in March  2011 ,  8  of every  25  employers in the United States were…

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A:

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.