Dayshon begins with five pennies in his bank on Day 1. Pennies are added to his bank every day, resulting in the following geometric sequence: 5,15,45,135, ... This pattern continues for 7 days. How many pennies will he have at the end of day 7? (Express your answer as pennies, not as dollars and cents!)

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.