Which of these variables is least likely to have a normal distribution? a. annual income for all 150 employees at a local high school b. lengths of 50 newly hatched pythons c. heights of 100 white pine trees in a forest d. amount of soda in 60 cups filled by an automated machine at a fast-food restaurant e. weights of 200 of the same candy bar in a shipment to a local supermarket?

Write 5 numbers that round to 740 when rounded to the nearest 10

What is the area of the shaded sector?

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.