Acompany is selecting students for interviews at the career fair. the number of students selected from university a is given by rx) = 4x + 5,
where x represents the number of days of the fair. the number of students selected from university b is given by g(x) = 2x + 8.
which function best describes the total number of students selected at the career fair?
a
b.
c.
d.
h(x) = 6x + 13
h(x) = -2x + 3
h(x) = 2x - 3
f(x) = (4x + 5)(2x + 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.