AP Statistics: 10th Grade Test Review

Do LED Christmas lights really last longer than incandescent Christmas lights?

Two Sample t-test for difference in means u1-u2

What percent of parents in our district have Schoology accounts?

One Sample z-interval for p

How long do 10th graders typically spend doing homework?

One Sample t-interval for means

Mrs. Cybulski gives each student a diagnostic statistics test in September and then again in January. The scores are out of 100 points. The September scores are then subtracted from the January scores for each student to see if the students know more statistics in January than in September.

Matched pairs t-test for udiff

Is exercise more effective at reducing weight or is dieting?

Two Sample t-test for difference in means

Who can make more free throw shots the boys or the girl?

Two Sample z-test for difference in proportions p1-p2

The carnival game has a wheel that has four different partitions, 3 of them say $100
prize and one says Loser. Is it more likely to land on the Loser partition?

One Sample z-test for proportions

According to the CDC the average height of males 20 years and up in the United States is 5’9", is that true for the male students at MSU?

One Sample t-test for means

Are more than 75% of Toyota owners generally satisfied with their vehicles?

One Sample z-test for proportions

Are male college students more likely to binge drink than female college students?

Two Sample z-test for proportions

A bank wants to know which of two incentive plans will most increase the use of its credit cards and by how much.

Two-Sample t-interval for difference in means

A city planner wants to determine if there is convincing evidence of a difference in the average number of cars passing through two different intersections. He randomly selects 12 times between 6:00am and 10:00pm and he and his assistant count the number of cars passing through each intersection and find the difference for each of the twelve 10 minute intervals.

Matched pairs t-test for udiff

“interval”

Looking for true value

“test”

looking for difference

“Matched paired”

Subject or individual measured twice