Karen is making a cake with two layers. For the bottom layer, she uses a large cylindrical cake pan. The pan has a radius of 6 inches and a height of 2 inches. What is the volume of
the cake pan?
Use a * 3.14 and round your answer to the nearest whole number.
cubic inches
For the top layer, she uses a smaller cylindrical cake pan. It has the same height, but a radius
of 3 inches. What is the volume of the smaller cake pan?
Use 3.14 and round your answer to the nearest whole number.
cubic inches
What is the total volume of the cake pans?
Round your answer to the nearest whole number.
cubic inches

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.