Para mobiliar sua cafeteria Elisa comprou tampos de mesa iguais com formato equivalente a justaposição de um trapézio a um semicírculo. Ela colocou um adesivo com estampa de bolo sobre cada um desse trampos. Cada adesivo tem o mesmo formato e a mesma de dimensões dos tampos de mesa no desenho abaixo estão indicadas as medidas da altura das bases do trapézio. E a medida do diâmetro do semi-círculo que compõem cada um desse tampos de mesa

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.