Tarefa nist_anova.smls01.agent

Veredito

Pergunta feita ao analista

NIST Statistical Reference Datasets, one-way analysis of variance, problem SmLs01: generated data with 1 constant leading digits; one factor (treatment) with 9 levels and 189 observations in a balanced design, model y_ij = mu + tau_i + e_ij. Dataset d holds the factor treatment (levels 1 to 9), the response response, and indicator columns treatment_2 to treatment_9 (1 when the row is at that level; level 1 is the reference). Compute the ANOVA F statistic for the hypothesis that all 9 treatment effects are equal: the between-treatment mean square divided by the within-treatment mean square.

Como o agente resolveu e como foi validado

Resumo passo a passo do que o agente executou, por que o caminho está correto e como cada verificação conferiu o resultado.

1. 1Preparação da base de dados
   d— NIST StRD SmLs01: 189 observations; treatment = the treatment level (1 to 9), response = the response, treatment_2 … treatment_9 = 1 when the row is at that treatment level (level 1 is the reference)
   Transformação "dummies" aplicada à base "d" (189 → 189 linhas). {"column":"treatment","drop_first":true,"prefix":"treatment"}
2. 2Chamada que gerou a resposta finalinfer.linear_hypothesis(Teste de hipótese linear conjunta (estatística F / Wald))citada na respostacoincide com a referência

   Ver chamada call_60821375 nos detalhes

   With classical errors, the joint test that every indicator's coefficient is zero is the one-way ANOVA F.

   Por que este é o caminho de referência: With classical errors, the joint test that every indicator's coefficient is zero is the one-way ANOVA F.
   Argumentos principais

   dataset:

   "d"

   hypothesis:

   "treatment_2 = 0, treatment_3 = 0, treatment_4 = 0, treatment_5 = 0, treatment_6 = 0, treatment_7 = 0, treatment_8 = 0, treatment_9 = 0"

   se:

   "classical"

   x:

   ["treatment_2","treatment_3","treatment_4","treatment_5","treatment_6","treatment_7","treatment_8","treatment_9"]

   y:

   "response"

   Resultado calculado

   • F = 21 20.99999999999999
     F statistic of treatment_2 = 0; treatment_3 = 0; treatment_4 = 0; treatment_5 = 0; treatment_6 = 0; treatment_7 = 0; treatment_8 = 0; treatment_9 = 0
   • p_value = 0,000000000000000000000258326probabilidade 2.5832643372690353e-22
     p-value of treatment_2 = 0; treatment_3 = 0; treatment_4 = 0; treatment_5 = 0; treatment_6 = 0; treatment_7 = 0; treatment_8 = 0; treatment_9 = 0
   Diagnósticos: statistic = "F" (F = W/m against F(m, n − k)) · df_numerator = 88 (number of restrictions) · df_denominator = 180180 (residual degrees of freedom n − k) · se_type = "classical" (classical (homoskedastic) standard errors) · n_obs = 189189
3. 3Conferência de lastro e resposta final

   Todos os 1 números escritos na resposta foram conferidos contra as ferramentas e o enunciado (nenhum número sem lastro).

   Números encontrados: 21,00
   Figuras citadas: call_60821375:F
   • ✓
     #0resposta com lastro

     Garante que todo número citado no texto veio de uma ferramenta ou do enunciado (sem cálculo mental do modelo).
   • ✓
     #1resposta citainfer.linear_hypothesis:F

     Exige que a resposta referencie explicitamente a figura infer.linear_hypothesis:F.
   • ✓
     #2ferramenta chamadainfer.linear_hypothesis

     Exige que o resultado venha da ferramenta infer.linear_hypothesis.
   • ✓
     #3argumento igualse

     the ANOVA F is the classical-variance Wald F (the tool's default se is HC1)
   • ✓
     #4diagnósticodf_numerator

     certified between-treatment df
   • ✓
     #5diagnósticodf_denominator

     certified within-treatment df
   • ✓
     #6dígitos corretos (LRE)F

     certified F statistic

Valores esperados e de onde vêm

Verificações

Caminho de referência e caminho do agente

A chamada de referência ao lado da chamada que deu a resposta, argumento por argumento.

Trajetória

Cada evento na ordem em que aconteceu: turnos do modelo, chamadas de ferramentas, guardas, transformações e pontuação.

1. 0Início

   NIST Statistical Reference Datasets, one-way analysis of variance, problem SmLs01: generated data with 1 constant leading digits; one factor (treatment) with 9 levels and 189 observations in a balanced design, model y_ij = mu + tau_i + e_ij. Dataset d holds the factor treatment (levels 1 to 9), the response response, and indicator columns treatment_2 to treatment_9 (1 when the row is at that level; level 1 is the reference). Compute the ANOVA F statistic for the hypothesis that all 9 treatment effects are equal: the between-treatment mean square divided by the within-treatment mean square.

   d (agent)

   NIST StRD SmLs01: 189 observations; treatment = the treatment level (1 to 9), response = the response, treatment_2 … treatment_9 = 1 when the row is at that treatment level (level 1 is the reference)

   file 29d9c979d46d845ed72c0fb0ed79083c8313833bbcf72040326640d87e2e40e4 · frame —

   1. dummies {"column":"treatment","drop_first":true,"prefix":"treatment"}
2. 1Transformação
   d · dummies {"column":"treatment","drop_first":true,"prefix":"treatment"}

   189 → 189 linhas

   Frame antes → depois: dc5f63a03dbd → c22685aa85f5
3. 2Turno do modelo
   call_65c75765referenceFim: tool_use0 ms0 de entrada · 0 de saída · 0 de raciocínio · 0 em cache

   Texto visível

   With classical errors, the joint test that every indicator's coefficient is zero is the one-way ANOVA F.

   Chamadas pedidas

   • infer.linear_hypothesis

     {
       "dataset": "d",
       "hypothesis": "treatment_2 = 0, treatment_3 = 0, treatment_4 = 0, treatment_5 = 0, treatment_6 = 0, treatment_7 = 0, treatment_8 = 0, treatment_9 = 0",
       "se": "classical",
       "x": [
         "treatment_2",
         "treatment_3",
         "treatment_4",
         "treatment_5",
         "treatment_6",
         "treatment_7",
         "treatment_8",
         "treatment_9"
       ],
       "y": "response"
     }

   Mensagens (formato neutro)Instruções do sistemaFerramentas oferecidas
4. 3Ferramenta
   infer.linear_hypothesis— Teste de hipótese linear conjunta (estatística F / Wald)v0.1.0call_60821375decidido pelo modeloreexecutável

   Motivo: With classical errors, the joint test that every indicator's coefficient is zero is the one-way ANOVA F.

   Argumentos

   {
     "cluster": null,
     "dataset": "d",
     "hypothesis": "treatment_2 = 0, treatment_3 = 0, treatment_4 = 0, treatment_5 = 0, treatment_6 = 0, treatment_7 = 0, treatment_8 = 0, treatment_9 = 0",
     "se": "classical",
     "subset": null,
     "x": [
       "treatment_2",
       "treatment_3",
       "treatment_4",
       "treatment_5",
       "treatment_6",
       "treatment_7",
       "treatment_8",
       "treatment_9"
     ],
     "y": "response"
   }

   Figuras call_60821375

   Chave	Valor	Valor bruto	Erro-padrão	IC
   F F statistic of treatment_2 = 0; treatment_3 = 0; treatment_4 = 0; treatment_5 = 0; treatment_6 = 0; treatment_7 = 0; treatment_8 = 0; treatment_9 = 0	21	20.99999999999999	—	—
   p_value p-value of treatment_2 = 0; treatment_3 = 0; treatment_4 = 0; treatment_5 = 0; treatment_6 = 0; treatment_7 = 0; treatment_8 = 0; treatment_9 = 0	0,000000000000000000000258326probabilidade	2.5832643372690353e-22	—	—

   Diagnósticos

   • statistic = "F" (F = W/m against F(m, n − k))
   • df_numerator = 88 (number of restrictions)
   • df_denominator = 180180 (residual degrees of freedom n − k)
   • se_type = "classical" (classical (homoskedastic) standard errors)
   • n_obs = 189189
   • n_clusters = — (errors not clustered)

   Derivação matemática e pressupostos

   F

   1. Estatística de Wald das 8 restrições, com a covariância classical (homoskedastic) standard errors.→ 168 (167.99999999999991)
   2. Estatística F: a de Wald dividida pelo número de restrições.F = W / m→ 21 (20.99999999999999)

   p_value

   1. Probabilidade de uma F(8, 180) exceder a estatística observada.→ 0,000000000000000000000258326 (2.5832643372690353e-22)

   Pressupostos do estimador

   • errors are independent and have the same variance for every observation

   Tabelas (2)

   {
     "coefficients": [
       {
         "ci_high": 1.4430594267159302,
         "ci_low": 1.3569405732840696,
         "coef": 1.4,
         "p": 6.048277422611796e-126,
         "se": 0.02182178902359925,
         "t": 64.15605972938172,
         "term": "Intercept"
       },
       {
         "ci_high": -0.039104774750320995,
         "ci_low": -0.16089522524967914,
         "coef": -0.10000000000000007,
         "p": 0.0014220432123559668,
         "se": 0.030860669992418387,
         "t": -3.240370349203932,
         "term": "treatment_2"
       },
       {
         "ci_high": 0.16089522524967903,
         "ci_low": 0.03910477475032091,
         "coef": 0.09999999999999998,
         "p": 0.0014220432123559763,
         "se": 0.03086066999241838,
         "t": 3.2403703492039297,
         "term": "treatment_3"
       },
       {
         "ci_high": -0.03910477475032096,
         "ci_low": -0.1608952252496792,
         "coef": -0.10000000000000007,
         "p": 0.0014220432123559763,
         "se": 0.030860669992418405,
         "t": -3.24037034920393,
         "term": "treatment_4"
       },
       {
         "ci_high": 0.16089522524967909,
         "ci_low": 0.03910477475032088,
         "coef": 0.09999999999999998,
         "p": 0.0014220432123559857,
         "se": 0.030860669992418398,
         "t": 3.240370349203928,
         "term": "treatment_5"
       },
       {
         "ci_high": -0.03910477475032095,
         "ci_low": -0.1608952252496792,
         "coef": -0.10000000000000007,
         "p": 0.0014220432123559796,
         "se": 0.03086066999241841,
         "t": -3.2403703492039293,
         "term": "treatment_6"
       },
       {
         "ci_high": 0.16089522524967909,
         "ci_low": 0.03910477475032087,
         "coef": 0.09999999999999998,
         "p": 0.0014220432123559857,
         "se": 0.0308606699924184,
         "t": 3.2403703492039275,
         "term": "treatment_7"
       },
       {
         "ci_high": -0.039104774750320974,
         "ci_low": -0.16089522524967917,
         "coef": -0.10000000000000007,
         "p": 0.00142204321235597,
         "se": 0.030860669992418398,
         "t": -3.240370349203931,
         "term": "treatment_8"
       },
       {
         "ci_high": 0.16089522524967909,
         "ci_low": 0.039104774750320884,
         "coef": 0.09999999999999998,
         "p": 0.0014220432123559857,
         "se": 0.030860669992418394,
         "t": 3.240370349203928,
         "term": "treatment_9"
       }
     ],
     "restrictions": [
       {
         "estimate": -0.10000000000000007,
         "hypothesized": 0,
         "restriction": "treatment_2 = 0"
       },
       {
         "estimate": 0.09999999999999998,
         "hypothesized": 0,
         "restriction": "treatment_3 = 0"
       },
       {
         "estimate": -0.10000000000000007,
         "hypothesized": 0,
         "restriction": "treatment_4 = 0"
       },
       {
         "estimate": 0.09999999999999998,
         "hypothesized": 0,
         "restriction": "treatment_5 = 0"
       },
       {
         "estimate": -0.10000000000000007,
         "hypothesized": 0,
         "restriction": "treatment_6 = 0"
       },
       {
         "estimate": 0.09999999999999998,
         "hypothesized": 0,
         "restriction": "treatment_7 = 0"
       },
       {
         "estimate": -0.10000000000000007,
         "hypothesized": 0,
         "restriction": "treatment_8 = 0"
       },
       {
         "estimate": 0.09999999999999998,
         "hypothesized": 0,
         "restriction": "treatment_9 = 0"
       }
     ]
   }

   Hashes SHA-256 e metadados de reprodução

   Digests dos dados

   d c22685aa85f5542bbedfed4848aef80c1c8027b542d82f83bebd6f0c7955b06e

   sha256 do resultado

   b1485c0754387cd7fe2a881e64494e6adac8a1da0d4e5752b89200dedb4abb10

   Resultado mostrado ao modelo
5. 4Turno do modelo
   call_a7ed665creferenceFim: tool_use0 ms0 de entrada · 0 de saída · 0 de raciocínio · 0 em cache

   Chamadas pedidas

   • submit_answer (meta-ferramenta)

     {
       "answer": "Estimativa (infer.linear_hypothesis): F = 21,00.",
       "caveats": [],
       "figure_refs": [
         "call_60821375:F"
       ]
     }

   Mensagens (formato neutro)Instruções do sistemaFerramentas oferecidas
6. 5Guarda
   resposta aceita

   Números encontrados

   21,00

   Sem lastro

   —

   Não citados

   —

   1 nova(s) tentativa(s) restante(s)
7. 6Resposta

   Estimativa (infer.linear_hypothesis): F = 21,00.

   Figuras citadas: call_60821375:F · Parada: answered

   Figura da resposta: call_60821375:F = 2120.99999999999999
8. 7Pontuação
   #0resposta com lastropassouobrigatóriaevery number backed
9. 8Pontuação
   #1resposta citapassouobrigatóriacited ['call_60821375:F']
10. 9Pontuação
    #2ferramenta chamadapassouobrigatóriaanswer call is infer.linear_hypothesis
11. 10Pontuação
    #3argumento igualpassouobrigatóriainfer.linear_hypothesis.se = 'classical'
12. 11Pontuação
    #4diagnósticopassouobrigatória8 vs 8
13. 12Pontuação
    #5diagnósticopassouobrigatória180 vs 180
14. 13Pontuação
    #6dígitos corretos (LRE)passouobrigatóriaLRE 15.00 (min 9.0)

Épocas × verificações

Tentativas

Cada tentativa é seu próprio arquivo e é publicada; só a última de cada época é pontuada.

• época 1, tentativa 1passoupontuada(exibindo)

Downloads desta tarefa