Week5 math533 feb_2013
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Week 5, Math 533
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permission. Students may use a copy for personal use.
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533Go to Graph >> Probability Distribution Plot, choose the right most “View Probability”
Click Ok, then click “Shaded Area” Tab
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Week 5, Math 533Now choose Both Tails, since the Ha was “not equal to”, make sure Probability value is correct (it was alpha = 0.05)
You can “see” your rejection regions, less than -1.960 and greater than 1.96
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Week 5, Math 533
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Week 5, Math 533Go to Stat >> Basic Statistics >> 1-Sample ZChoose “Summarized data”Input Sample Size, Mean, Standard Deviation and Hypothesized MeanClick Options and Make sure your Confidence Level is Correct
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Week 5, Math 533You get your calculated z statistic
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Week 5, Math 533
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Week 5, Math 533
5.07 would be “way out in the rejection region”5.07
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Week 5, Math 533
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Week 5, Math 533
Same as first one, but this time we choose Left Tail, since the Ha was “less than”, make sure Probability value is correct (it was alpha = 0.005
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
-1.60 would NOT be in the rejection region
-1.60
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
Go to Graph >> Probability Distribution Plot, choose the right most “View Probability”Now Choose “t” for Distribution and input Degrees of Freedom (n-1), now go to “Shaded Area” tab and choose Left Tail and input 0.05 for probability
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
You will need to find the mean and standard deviation of the data and follow a similar approach as you did in number 6.
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533
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Week 5, Math 533