Giving

which statement explains the difference between a line and a segment?

a line does not have a formal definition, and a segment is described through undefined terms.

a line can be used to create other geometric shapes, and a segment is always part of a shape.

a segment contains an infinite number of points, and a line has two endpoints.

a segment does not have width or depth, and a line continues infinitely in one direction.

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.