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Answer Key — Inference for Categorical Data — Chi-Square

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Statistics · AP

Do not share with students before practice tests.

Worksheets — Sets 1–10

| Set | Guidance | | --- | --- | | Set 1 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 2 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 3 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 4 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 5 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 6 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 7 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 8 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 9 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 10 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. |

Worksheets — Sets 11–20

| Set | Guidance | | --- | --- | | Set 11 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 12 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 13 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 14 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 15 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 16 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 17 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 18 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 19 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. | | Set 20 | Inference for Categorical Data — Chi-Square — verify written work and accept reasonable drawings. |

Review tiers 1–10

  • Checklists are parent-judged.
  • Written items: verify against practice set patterns.
  • Standard text: Identify questions suggested by variation between observed and expected counts in categorical data. Describechi-square distributions. Calculate the appropriate statisticforthechi-square testforgoodnessoffit. Calculate expected counts fortwo-waytablesof categorical data. Identify the null and alternative hypotheses forachi-squaretest for homogeneity or independence. Carrying Out a Chi-Square Test for Homogeneity or Independence

Practice test scoring

| Tier | Pass guidance | | --- | --- | | 1–3 | Most oral tasks smooth; majority of written correct | | 4–6 | 7/10+ total with clear understanding | | 7–8 | 9/12+ with explanations | | 9–10 | Near-perfect; ready to move on |

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