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sol_which_inference(1) - 7 Individual observations...

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Answers to Inference Review Questions 2. Individual observations: Nominal(cheated or not?) Inference procedure: One sample proportion Statistic: Z Degrees of freedom: not applicable 3. Individual observations: Interval (amount of tar for a regular cigarette, or for a low tar one.) Inference procedure: Two sample mean Statistic: t Degrees of freedom: (15 - 1) = 14 degree of freedom 5. Individual observations: Interval (tip on one receipt.) Inference procedure: One sample mean Statistic: t Degrees of freedom: 20 - 1 = 19
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Unformatted text preview: 7. Individual observations: Interval (For one team, its home points total and its away points total) Inference procedure: Mathched pairs Statistic: t Degrees of freedom: 32-1 = 31 8. Individual observations: Nominal (ticketed or not? and Man or woman?) Inference procedure: Two sample proportion Statistic: Z Degrees of freedom: not applicable Remark: For two sided two sample proportion test can also be done as a 2 × 2 χ 2 test of contigency table. 1...
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