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Chapter 6

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  • 1. z-intervals Determining Intervals Standard Confidence Critical Left Right Mean Deviation Sample Size Level Error Scores Endpoint Endpoint 82 15 35 0.99 6.531 2.576 75.47 88.53 82 15 35 0.95 4.969 1.960 77.03 86.97 82 15 35 0.99 6.531 2.576 75.47 88.53 Determining Sample Sizes Standard Confidence Deviation Error Level Zc Sample Size 800 200 0.95 1.960 61
  • 2. t-intervals n d.f clevel sample avg s tc E x-E x+E 10 9 0.99 12 2 3.250 2.06 9.94 14.06 10 9 0.9 12 2 1.833 1.16 10.84 13.16 9 14 7 8 11 5 9 3.16
  • 3. Proportions n x c.level p^ q^ E Left Endpoint Right Endpoint 132 85.8 0.95 0.650 0.350 0.081 0.569 0.731 132 85.8 0.95 0.650 0.350 0.081 0.569 0.731 Sample Sizes p^ q^ Error C. Level Zc Sample Size 0.2 0.8 0.03 0.95 1.960 683
  • 4. Right Endpoint
  • 5. Chi-Square Sample Degree of Confidence Standard Left Sample Size Freedom Level Χ2 R Χ2 L Deviation Endpoint Right Endpoint 27 26 0.9 38.885 15.379 2.607680962 4.55 11.50 2.13 3.39
  • 6. Variance Standard dev 4.25 4.27 4.24 4.26 4.29 4.19 4.25 4.22 4.24 4.25 4.21 4.3 4.26 4.29 0 0.03