Name the Test
Mrs. Garcia found the National mean score for the AP Stats exam to be a 2.89. She wants to know if the ATHS mean score on the AP Statistics exam is different than the national mean.
What is a 1-Mean T-Test/ 2:T-Test?
Two events that have no outcomes in common.
What are disjoint events?
A local TV news station has a daily poll that they ask their viewers. Every day at 5:00 PM they put up a QR code on the screen and anyone who is watching and would like to respond may do so and answer the question.
What is voluntary response bias?
How do you describe univariate distributions?
What is center, shape, spread and relate to the problem?
This measure of center is more resistant to outliers than the mean.
What is the median?
The date of the test
What is Tuesday, May 7th?
Mr. Jackson bought a jumbo bag of skittles and is curious to see if his ratio of green, red, yellow, brown and blue skittles matches the ratio described on the skittles website. He counts out the amount of each color he has and decides to run a ________ Test to see if it matches the historical ratio.
What is a Chi Squared Goodness of Fit Test?
The effects of two variables on the response cannot be distinguished from each other.
What is confounding?
An airline company wants to survey its customers one day, so they randomly select 5 flights that day and survey every passenger on those flights.
What type of sample is this?
What is a cluster random sample?
How do you describe bivariate distributions?
What is direction, form, strength and relate to the problem?
Stem plots, histograms, box plots, bar graphs, dot plots and scatter plots can be used to display this kind of data.
What is quantitative data?
Where is the testing location?
What is room M212?
A hospital reported 5 c-section births out of 89 patients under the age of 38. The same hospital reported 9 c-section births out of 56 patients over the age of 38. What test should be used to see if there is a difference between the 2 groups?
What is a 2 proportion Z Test/ 6:2-PropZTest?
P(A)=P(A|B) and P(B)=P(B|A)
What are independent events?
A television reporter wants to determine if Maryland residents would be interested in renovating Camden Yards, Baltimore's baseball field. The reporter asks baseball game attendees at Camden Yards if they support the idea.
What is convenience sampling?
You have a normal distribution; this many standard deviations is what 95% of the values lie within.
What are two standard deviations?
This rule helps to determine if data is normally distributed by checking the number of observations within 1, 2, and 3 standard deviations away from the mean.
What is the Empirical Rule (68-95-99.7 Rule)?
What time do you have to report to the testing location?
What is 11:45 am?
ATHS track Coach Hawkins wants to see if her training is leading to improvement in her sprinter. She has them all run a 100m at the beginning of the year and records their times. Then, after a full season of training, she has them run the 100m again in the same conditions (same track, same weather, etc.). She then records their new times. She runs a test to see if there is a statistically significant difference between their times at the beginning of the season, pre-training, and at the end of the season.
What is a Matched Pairs T-Test/ 2:T-Test? (must say matched pairs to get credit)
Write in words how you would find the probability of a female given that they are an AP Stats student.
What is P(Female|AP Stats Student) = P(Female AP Stats Student)/P(AP Stats Student)?
A survey was sent out on a new phone app to try to get information about all people in the United States. However, mainly younger Americans (aged 14-30) have this app on their phone. This is an example of ___.
What is nonresponse bias?
This is the expected value equation.
What is E(X) = ∑(x)*P(x)?
How can you find whether or not a data point is an outlier mathematically?
What is
> Q3 + 1.5(IQR)
< Q1 - 1.5(IQR)
Do you lose points for guessing and getting a multiple-choice question wrong on the AP Statistics Exam?
What is NO?
Mr. Paulson has noticed that a couple of his students are taking AP Calculus BC at the same time as they are taking AP Statistics. He wonders if there is a correlation between taking BC Calculus at the same time and good performance on the AP Statistics tests. He separates students into 3 groups: Students taking AB Cal and Statistics, students taking BC Calc and statistics, and students only taking Statistics. Then he looks at how many students in each group have a grade of A or B, C or D, and finally E and below. Based on the results of his test, he will be able to determine whether the proportion of students who perform well in the class differs between which/how many math courses they are taking.
What is Chi Squared Test for Independence?
An airport screens bags for forbidden items, and an alarm is supposed to be triggered when a forbidden item is detected. Suppose 5% of bags contain forbidden items. If a bag contains a forbidden item, there is a 98% chance that it triggers the alarm. If a bag does not contain a forbidden item, there is an 8% chance that it triggers the alarm.
Given a randomly chosen bag triggers the alarm, what is the probability that it contains a forbidden item?
What is 0.392?
A truck manufacturer selects 3 trucks at random from each of 6 models for safety testing. What type of sample is this?
What is a stratified random sample?
SD(X) = 3
SD(Y) = 5
SD(X-Y)= ?
(Hint use your calculator)
What is 5.831?
Write the conclusion for a 95% confidence interval (-4.25,-1.33) for the average drop in MP3 grades.
What is "We are 95% confident that the true drop of MP3 grades is between -4.25 and -1.33"?
Besides Center, Shape and Spread, what must I include in the description of a distribution?
What is CONTEXT?