Acorporation must appoint a planning committee with three different members. there are 12 qualified candidates, and officers can also serve on the committee.
complete parts (a) through (c) below. a. how many different ways can the officers be appointed? there are nothing different ways to appoint the officers. b. how many different ways can the committee be appointed? there are nothing different ways to appoint the committee. c. what is the probability of randomly selecting the committee members and getting the five youngest of the qualified candidates? p(getting the five youngest of the qualified candidates)equals=nothing

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.