In a completely randomized experimental design involving five treatments, a total of 65 observations were recorded for each of the five treatments. The following information is provided. SSTR = 200 (Sum Square Between Treatments) SST = 800 (Total Sum Square) 9. Refer to Exhibit 1. The sum of squares within treatments (SSE) is a. 1,000 b. 600 c. 200 d. 1,600 10. Refer to Exhibit 1. The number of degrees of freedom corresponding to between treatments is

a. 60
b. 59
c. 5
d. 4

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.