week5 math533 feb_2013
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Week 5, Math 533
B HeardDo not copy or post without my
permission. Students may use a copy for personal use.
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533Go to Graph >> Probability Distribution Plot, choose the right most “View Probability”
Click Ok, then click “Shaded Area” Tab
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
Week 5, Math 533
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
Week 5, Math 533You get your calculated z statistic
Week 5, Math 533
Week 5, Math 533
5.07 would be “way out in the rejection region”5.07
Week 5, Math 533
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
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
-1.60 would NOT be in the rejection region
-1.60
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
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
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
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.
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
Week 5, Math 533
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