Need-To-Know Vocab
What is an "experiment"?
What is "a procedure for investigating the effect of an experimental condition on a response variable"?
A board of directors of a local homeowner's association union organization wishes to amend the bylaws. A sample of the residents revealed 310 of 430 were in favor of the amendment. Does the board of directors have the required 75% majority?
Correct inference? What is a "1-proportion z-test"?
A coin has been flipped 10 times, and each time it has landed on heads. What is the probability that the next time the coin is flipped, it will land on tails?
In a data set where the data is skewed right, is the mean equal to, greater than, or less than the median?
What is "greater than the median"?
As ruler of the Mongol Empire, this historical figure significantly cooled the temperature of the earth by killing 11% of the word population.
Who is "Genghis Khan"?
What is "bias"?
What is "some sort failure when sampling that fails to accurately represent said population"?
Tags placed on garbage cans allow the disposal of up to 30 pounds of garbage. A random sample of 22 cans averaged 33.2 pounds with a standard deviation of 3.2 pounds. Is this strong evidence that residents overload their garbage cans?
What is a "1-sample t-test"?
What is ".1"?
What is the main difference between an "outlier" and a "high leverage" point on a graph?
An outlier is a data point where the "y-value" does not follow the trend of the data set. A high leverage point requires an extreme "x-value" that is particularly high or low compared what is predicted by the data set.
Pure coin flip! Do more than, less than, or exactly 50% of Americans sleep on their sides?
What is "more than 50%"?
What is the "p-value"?
What is "the probability of obtaining a test result at least as extreme as the result actually observed, given the null hypothesis is true"?
Researchers developing new drugs must be concerned about possible side effects. They must check a new medication for arthritis to be sure that it does not cause an unsafe increase in blood pressure. They measure the blood pressures of a group of 12 subjects, then administer the drug and recheck the blood pressures one hour later. The drug will be approved for use unless there is evidence that blood pressure has increased an average of more than 20 points.
What is ".9893"?
Sorting by most likely to least likely, how likely are you to die by the following: Golf Ball, Hippos, Black Friday, Deer, Vending Machine.
What is (from most to least likely to kill you) Hippos, Deer, Vending Machine, Golf Ball, Black Friday?
https://www.talkdeath.com/unusual-unlikely-ways-to-die/
What is a "correlation"?
What is "the strength of the relationship between two variables; how well two variables predict each other"?
A biology professor reports that historically grades in her introductory biology course have been distributed as follows: 15% A's, 30% B's, 40% C's, 10% D's, and 5% F's. After a test, she wonders if the grade distribution matches the historical distribution.
What is a "Chi-Square Goodness-Of-Fit" test?
If a coin is flipped 10 times, what is the probability that it will land of heads 3 times?
How does one calculate a residual?
What is "observed value-predicted value"?
How many unique ways are there to make change for a dollar? (Ex: 4 quarters). Closest wins!
What is "293"?
What is a "residual"?
What is "the difference between an observed value of the response variable and the value predicted by the regression line"?
A wildlife biologist wants to determine the mean weight of adult red squirrels. She captures 10 squirrels she believes to be representative of the species and weighs them, finding a mean of 12.32 grams and standard deviation of 1.88gm.
What is a "1-sample t-interval"?
You're a klutz. Say the probability of you walking into AP Stats class and tripping on any given day is 6%. Once you trip, everyone will laugh at you. Find the probability that you don't trip even once as you walk into class for at least a week.
What is ".6899"?
What is ".5"?
How many Popes live in Vatican City per square acre?
What is "2"? This is because the Vatican is only .5 square acres, and there's only one Pope.