Week5 math533 feb_2013

1. Week 5, Math 533 B Heard Do not copy or post without my permission. Students may use a copy for personal use.

2. Week 5, Math 533

3. Week 5, Math 533

4. Week 5, Math 533

5. Week 5, Math 533 Go to Graph >> Probability Distribution Plot, choose the right most “View Probability” Click Ok, then click “Shaded Area” Tab

6. Week 5, Math 533 Now 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

7. Week 5, Math 533

8. Week 5, Math 533 Go to Stat >> Basic Statistics >> 1-Sample Z Choose “Summarized data” Input Sample Size, Mean, Standard Deviation and Hypothesized Mean Click Options and Make sure your Confidence Level is Correct

9. Week 5, Math 533 You get your calculated z statistic

10. Week 5, Math 533

11. Week 5, Math 533 5.07 would be “way out in the 5.07 rejection region”

13. 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

17. Week 5, Math 533 -1.60 would NOT be in the rejection region -1.60

30. 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

35. 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.

Week5 math533 feb_2013

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Week5 math533 feb_2013