The coach of a high school basketball team represented the heights of the players, as shown. Height of Basketball Team
5
5
4
Frequency
0
195
200
170
175
180 185
190
Height (in cm)
Which statement is true?
O of the basketball players on the team, exactly 25% have heights above 190 cm.
O of the basketball players on the team, exactly 75% have heights above 180 cm.
of the basketball players on the team, exactly 50% have heights above 185 cm.
of the basketball players on the team, exactly 17% have heights above 195 cm.
.
C

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.