Ajet ski company charges a flat fee of $24.00 plus $2.25 per hour to rent a jet ski. another company charges a fee of $23.00 plus $2.75 per hour to rent the same jet ski.

using a graphing calculator, find the number of hours for which the costs are the same. round your answer to the nearest whole hour.

a) 2
b) 3
c) 4
d) 8

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.