Natalie ran to the library from home. Then
she ran 0.25 mile to the track. She ran
7.5 miles around the track and then took
the same route home. Let m represent the
distance in miles from Natalie's home to
the library. Which expression represents
the total distance in miles that Natalie ran?
A. m +0.25 +1.5
B. m + 2(0.25 + 1.5)
C. 2m +0.25 + 1.5
D. 2m +0.25) + 1.5

Please answer!!

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.