Robert's engineering team is working on a plan for building a new straight road to the top of a hill in his town. He must make sure that the grade, or the angle of elevation the road forms with a flat road, is 6". The height of the hill is 100 feet.
100 ft
6°
What is the approximate length of the road in feet?
101 ft.
201 ft.
951 ft.
957 ft.

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.