Progress test 2011 pie(table(annodicorso)) annodicorso 3 4 51 40.

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Presentation transcript:

progress test 2011

pie(table(annodicorso)) annodicorso

table(annodicorso, genere) genere annodicorso F M plot(table(annodicorso, genere))

table(annodicorso, genere) genere annodicorso F M fisher.test(table(annodicorso, genere)) data: table(annodicorso, genere) p-value = 1 alternative hypothesis: true odds ratio is not equal to 1 95 percent confidence interval: sample estimates: odds ratio

boxplot(mediavoti)

boxplot(mediavoti ~ genere)

qqnorm(mediavoti)

boxplot(mediavoti ~ genere) fligner.test(mediavoti ~ genere) Fligner-Killeen: med chi-squared = , df = 1, p-value = wilcox.test(mediavoti ~ genere) data: mediavoti by genere W = 885, p-value = alternative hypothesis: true location shift is not equal to 0

boxplot(mediavoti ~ annodicorso)

fligner.test(mediavoti ~ annodicorso) data: mediavoti by annodicorso Fligner-Killeen:med chi-squared = , df = 1, p-value = wilcox.test(mediavoti ~ annodicorso) data: mediavoti by annodicorso W = 615.5, p-value = alternative hypothesis: true location shift is not equal to 0

pie(table(deltaesami)) deltaesami

table(genere, deltaesami) deltaesami genere F M chisq.test(table(genere, deltaesami)) X-squared = , df = 4, p-value = Warning message: In chisq.test(table(genere, deltaesami)) : L'approssimazione al Chi-quadrato potrebbe essere inesatta

table(genere, deltaesami) deltaesami genere F M fisher.test(table(genere, deltaesami)) data: table(genere, deltaesami) p-value = alternative hypothesis: two.sided

table(annodicorso, deltaesami) deltaesami annodicorso fisher.test(table(annodicorso, deltaesami)) data: table(annodicorso, deltaesami) p-value = alternative hypothesis: two.sided

boxplot(indicegradim)

table(indicegradim) indicegradim

boxplot(indicegradim ~ annodicorso)

fligner.test(indicegradim ~ annodicorso) data: indicegradim by annodicorso Fligner-Killeen:med chi-squared = , df = 1, p-value = wilcox.test(indicegradim ~ annodicorso) data: indicegradim by annodicorso W = 658.5, p-value =

boxplot(indicegradim ~ genere)

fligner.test(indicegradim ~ genere) med chi-squared = , df = 1, p-value = wilcox.test(indicegradim ~ genere) W = 735.5, p-value =

plot(jitter(indicegradim), jitter(mediavoti))

summary.lm Call: lm(formula = indicegradim ~ mediavoti) Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) mediavoti Residual standard error: on 70 degrees of freedom (19 observations deleted due to missingness) Multiple R-squared: , Adjusted R-squared: F-statistic: on 1 and 70 DF, p-value:

plot.lm

plot(jitter(deltaesami), jitter(indicegradim))

coplot(indicegradim ~ deltaesami |annodicorso)

coplot(indicegradim ~ deltaesami | genere)

c(sum(corrette), sum(nondate), sum(sbagliate))

boxplot(sommaesatte / 300) performancestudente <- sum(corrette[studente])

plot(sommaesatte, sommasbagliate)

plot(reg)

plot(sommaesatte, sommasbagliate)

plot(reg2)

plot(sommaesatte, logsommasbagliate)

plot(sommaesatte, sommasbagliate) plot(reglog)

boxplot(corrette / somma ~ insegnamento) biochimica chir comportam farmaco fisiologia medint microimmuno morfologia ostgineco patofisio patologia pediatria sanita

tapply(corrette / somma,insegnamento, median) biochimica chir comportam farmaco fisiologia medint microimmuno morfologia ostgineco patofisio patologia pediatria sanita

boxplot(sbagliate / somma ~ insegnamento) biochimica chir comportam farmaco fisiologia medint microimmuno morfologia ostgineco patofisio patologia pediatria sanita

tapply(sbagliate / somma,insegnamento, median) biochimica chir comportam farmaco fisiologia medint microimmuno morfologia ostgineco patofisio patologia pediatria sanita

glm (correttesusomma ~ scienze + annodicorso + genere + mediavoti + deltaesami + indicegradim, family = poisson) Coefficients: Estimate Std. Error z value Pr(>|z|) (Intercept) e-11 *** scienzecliniche < 2e-16 *** annodicorso < 2e-16 *** genereM mediavoti e-11 *** deltaesami e-09 *** indicegradim < 2e-16 ***