Sampling & Experiments
What kind of experiment is this? Neither the subject nor those who measure the response variable know which treatment a subject received.
What is a double-blind experiment?
P-value = 0.001
What is "since the P-value is less than any reasonable significance level, we reject the null hypothesis, and conclude there is significance evidence to support the alternative hypothesis"?
What is the formula ? How to identify outliers for univariate data
What is Q1 - 1.5(IQR) and Q3 + 1.5(IQR)?
Find the probability of rolling a fair die three times and getting three fours.
What is P(rolling three 4s) = P(4)*P(4)*P(4) = P(4)^3?
What variable is the correlation coefficient
What is STAT-->CALC-->8:LinReg(a+bx) L1, L2?
What kind of experiment would you use if each subject receives both treatments?
What is matched pairs?
How do you find the expected value of a sampling distribution?
What is the mean of the random variable found by summing the products of the values of x and their repsective probabilities?
Find the probability of pulling a red or queen from a standard deck of cards.
What is P(red or queen) = P(red) + P(queen) - P(red and queen)?
Find the probability of at least 8 successes in 12 trials given a probability of success of 45%.
What is DISTR (or 2nd VARS)--> 1-binomcdf(12,.45,7)?
What kind of bias is described? When some groups in the population are left out of the process of choosing a sample
What is undercoverage?
What does it mean if a value has A z-score of -3.45
What is "The data value is 3.45 standard deviations below the mean"?
What is the formula? How to determine if two events, A and B, are independent
What is P(B|A) = P(B) or P(A and B) = P(A)P(B)?
What would be the formula for finding 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)
The z* for a 92% confidence interval
What is DISTR (or 2nd VARS)--> invNorm(.96)?
What kind of sample is this? The population is divided into groups. Some groups are randomly selected and all individuals in the chosen groups are sampled.
What is cluster sampling?
How do you add or subtract standard deviations of two random variables?
What is the square root of the sum of the variances of the two random variables?
What calculator function would you use to find the probability of obtaining the first success on the 5th trial.
What is P(X=5) = p(1-p)^4
What calculator function do you use when something is normally distributed
normalcdf
What kind of variable is this describing that occurs in an experiment ? The effects of two variables on the response cannot be distinguished from each other.
What is confounding?
What is the formula to find the standard deviation of the sampling distribution of sample means
What is the mean of the sampling distribution of sample means is equal to the population mean and the standard deviation of the sampling distribution of sample means is equal to the population standard deviation divided by the square root of the sample size?
What is the probability of getting 10 successes in 15 trials if the probability of success is 1/7
What is P(X=10) = (15 C 10)*p^10*(1-p)^5
How could you find Ten random intergers from 1 to 100.
What is MATH--> PRB--> 5: RantInt(1,100,10)