Quand l'avion de Pierre n'est plus très loin de l'aéroport de Toulouse, le radar de la tour de controle émet un signal bref en direction de l'avion. Le signal atteint l'avion et revient au radar 3 fois 10 puissance -4 seconde après sont émission. Sachant que e signal est émis à la vitesse de la lumière 3 fois 10 puissance 8, calcule la distance qui sépare l'avion du radar de la tour de controle

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.