1). For each experiment listed below, please write the name and formula for the statistical analysis or test that should be used.

A) An experimenter is studying whether cell phone use and attention span are related. They ask people how many hours a day they are on the phone and then have them complete a difficult puzzle and measure completion time.

B) A car dealership has three models of cars and wants to find out if their salespeople are selling the cars in equal numbers.

C) An elementary school wants to know whether providing a longer recess during testing weeks helps students perform better. They give all the students a practice test with the normal schedule and then the next week give them another test with extended recess and compare their scores.

D) Seattle wants to produce programs to increase public health, so they enact an additional 15% tax on sugary beverages. One year later they want to compare the rate of diabetes in Seattle to the national average. E) An archeology expedition has found a forged tool that is made of 43% of a particular type of iron all other tools at the dig site are 30 +/- 5% of this metal. They want to know if it's likely this knife was imported.

F) I want to study the effects of video games on aggression. I bring in three different groups of kids and have them play no games, a violent game or a cooperative game. I then measure how many aggressive incidents they have on a playground afterwards.

G) A professor wants to know whether a particular type of introductory lecture affects withdrawal rates. So they give a different lecture to two classes. With lecture 1, 5 students dropped, 15 stayed and in lecture 2, 1 dropped and 25 stayed.