lab 9 Heitor Faria

# lab 9 Heitor Faria - Lab 9 Inferncia para dados...

• Lab Report
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## # A tibble: 2 x 2 ## response n() ## <fctr> <int> ## 1 atheist 50 ## 2 non-atheist 952 Exercício 5: De acordo com a descrição de métodos do artigos, as coletas de amostra parecem foram colhidas através de processos definidos. Quanto ao teste de sucessão e falha, também atendido: na medida que chance de sucesso em ser ateu (1002 x 0,05) >= 10, e chance de falha em ser (1002 x 0,952) >=10. inference (y = us12\$response, est = "proportion", type = "ci", method = "theor etical", success = "atheist") ## Single proportion -- success: atheist ## Summary statistics: Lab 9 - Inferência para dados categorizados ... 2 de 15 17/09/2016 18:57
## p_hat = 0.0499 ; n = 1002 ## Check conditions: number of successes = 50 ; number of failures = 952 ## Standard error = 0.0069 ## 95 % Confidence interval = ( 0.0364 , 0.0634 ) Exercício 6: A margem de erro é a metade do intervalo de confiança. Ou seja: 1,35% (0.0634 - 0.0364) / 2 ## [1] 0.0135 Exercício 7: As condições de inferêcia são atendidas (1002 x 100 > 10 Austria, 2002 x 0,01 > 10 para Brasil).

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• Fall '15
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