an experiment in which neither the subjects nor the experimenters interacting with the subjects know which group receives which treatment
What is Double Blind
Women’s heights have a mean of 63.6 in. and a standard deviation of 2.5 inches. Find the z score corresponding to a woman with a height of 70 inches
What is 2.56
You roll a 6 sided dice, what is the probability that you roll a 2 or a 6?
What is 33.33%
Equation for Probability
What is (num of favorable outcomes)/(total outcomes)
researchers divide the population up into groups and then take an SRS of the groups to create the sample
What is Cluster Sample
Suppose that blood sugar levels are normally distributed with a mean of 100 mg/dl (milligrams per deciliter) and a standard deviation of 10mg/dl. David has a blood sugar level of 85 mg/dl. Calculate David's z-score.
What is z=-1.5
A jar contains four marbles: three red, and one white. Two marbles are drawn with replacement. What is the probability that you draw two white marbles?
What is 6.25%
When is your next midterm?
What is Week 7
an experiment without a comparative control group
What is an Uncontrolled experiment
On average, it takes Han Solo 45 seconds to check the coordinates and make the jump into hyperspace. The standard deviation on this important task is 5 seconds. When Han and Chewbacca and their passengers are leaving they make the jump in 33 seconds or less. What is the probability of such an accomplishment?
What is 0.82%
Two fair dice are rolled. What is the probability that their sum is greater than four?
What is 83.33%
How much wood could a woodchuck chuck if a woodchuck could chuck wood?
What is
As much wood as a woodchuck could if a woodchuck could chuck wood
You are doing an experiment to test the effects of caffeine on running speed. You time to see how fast participants run 200 meters before and then after they drink a cup of coffee. What experimental design is this an example of?
What is Matched-Pairs Design
One year, many college-bound high school seniors in the U.S. took the Scholastic Aptitude Test (SAT). For the verbal portion of this test, the mean was 425 and the standard deviation was 110. Based on this information what percentage of students would be expected to score between 350 and 550?
What is 62.45%
What is 20%
State sport of Maryland?
What is Jousting & Lacrosse