Jorge, the shipping manager at Durable Products, writes a memo proposing that that they stop using RoadHog Trucking Company and ship everything by L. B. Haines. The reason he gives is that two of the accounts that have been shipping by L. B. Haines during the last year increased their orders by more than 10%, so he is certain that switching trucking firms will cause other accounts to grow too. The executives of the company do not accept Jorge's suggestion. Why was his memo unconvincing?

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.