The Stock Market Nadia is a stockbroker. She earns 14% commission each week. Last week, 6,800 worth of stocks. How much did
she make last week in commission? If she averages that same amount each week, how much did she make in commission in 2011?

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.

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?

Benjamin believes that ¼ % is equivalent to 25%. is he correct? why or why not?