Which test is it?
Finding an interval for a distribution of sample means.
What is a T-Interval?
Probability of rolling a six on a die
What is 1/6?
The equation for a residual
What is e=y-ŷ?
This is the minimum value that the S/F Condition must be equal or greater to
What is 10?
Students are numbered 1-50 and 10 are randomly chosen
What is a simple random sample?
Test used when comparing observed values to expected values
What is a chi-squared test?
Probability of rolling a 3 or an even number on a die
What is 2/3?
You do not want this in a residual plot
What is strength of association?
Minimum sample size for a confidence interval
What is n > 30?
Scientists looked back at data from 10 years ago to see how sleep affects heart rate.
What is a retrospective study?
What test is used when comparing the proportions of two independent groups?
What is a 2-PropZTest?
Probability of getting a getting a black card, given that the card is odd
What is 1/2?
Equation for regression line
What is ŷ=b0+b1x?
What does CLT mean and what does it stand for?
Central Limit Theorem. States that the distribution of sample means approximates a normal distribution as the sample size gets larger, regardless of the population's distribution.
A janitor checked every third bathroom to see if it was clean.
What is a systematic study?
If you are comparing one proportion of a sample to a known population proportion what type of test is it?
1-PropZTest
There are 15 red flowers and 20 blue flowers in a vase. Find the probability of picking at most 5 red flowers when pulling them out blindly and with replacement (answer with calculator input)
What is binomcdf(35, 15/35, 5)?
This says that a ____% of variation in y is accounted for by the variation in x
What is the coefficient of determination (R2)?
This must be the minimum expected cell frequency for a chi-square test for independence
What is 5?
Doctors separated their patients into age groups and randomly chose four individuals from each group.
What is a stratified random sample?
The test used to check quality of fit
What is LinReg T Test?
Probability of hitting at least 3 out of 10 tennis balls if you have a 80% hit average (answer with calculator input)
What is 1-binomcdf(10, 0.8, 2)?
A point is said to have high leverage if it is
What is far from x bar?
These are the conditions that need to be met for a matched pairs t test
What are Paired Data Assumption, Independence (Randomization), 10% Condition, Nearly Normal Condition?
Ten classes are chosen at random and every member of the class is sampled.
What is cluster sampling?