A diver dives from sea level at a rate of 15 1 2 feet per minute. How many minutes will it take the diver to reach a depth of 279 feet below sea level? Be sure to SHOW or EXPLAIN all work.

HINT: Diving 15.5 feet per minute is like repeating subtraction every minute. What math operation is like repeating subtraction?

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.