BELL RINGER - 12/15/202 A sample survey of 300 high school students was conducted and 64 of them preferred carrots over cucumbers. If you pick one student at random from the 300 who answered the survey, what is the probability, written as a percent, that the student does not prefer carrots over cucumbers? Round to the nearest whole percent.
2 question

EXIT TICKET - 12/15/2020

Mercedes notices that of the first 100 vehicles driving by her school, 85 of them are cars. Using proportional reasoning and a percent equation, estimate how many vehicles out of the next 1,500 are cars.

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.