1 and 2 Variable Data
The acronym for making a boxplot
What is SOCS?
P(A/B)=P(AnB)/P(B)
What is the given formula?
A variable that influences the response variable
What is a confounding variable?
What is PANIC?
n-1, important number to include when giving numbers on an inference question
What are degrees of freedom?
We use this to help make claims about the center of data
What is the median?
P(AnB)=P(A)*P(B)
What is independence?
The reason we can use experiements
What is cause and effect?
We make sure to do this so that the trials are independent
What is satisfy central limit theorem?
Statistic +- (critical value)(st.dev of the statistic)
What is the formula for confidence intervals?
We use this to determine percentile (calculator function)
What is normalcdf?
The probability that a randomly chosen American is a republican is 0.35. What is the probability that in a sample of 10 Americans, that at least one will be a republican?
What is 0.9865?
Each subject gets both treatments
What is Matched-Pairs Design?
What one word can't we forget when defining our parameters?
What is true?
We use this for a 2 sample t interval when defining our parameters
What is true difference in means?
What is linear?
A fair die is rolled 3 times. The first rolls resulted in 2 fives. What is the probability of not rolling a five on the next roll?
What is 5/6?
We divide the population into groups and take simple random samples of the groups
What is a cluster sample?
Null Hypothesis is true and we reject based on the sample
What is a type 1 error?
Alternative hypothesis is true and we do not reject the null hypothesis
What is a type 2 error?
R^2 is also known as
What is the coefficient of determination?
Because of this, we can not add standard deviations
What is we need to consider the variances?
Because there is a predetermined selection (every Kth)
Why is a systematic sample not good?
We do this to check outliers when the sample size is not big enough
What is make a boxplot?
Why we use t intervals?