Calculator Input
Probability
Inference
Conditions
Random
100
What is RandInt used for?
Finding a random value
100
What type of distribution contains a fixed amount of trials?
Binomial Distribution
100
Which of the following are used for estimating the mean;
T distribution or Z distribution?
T distribution
100
How large does "N" have to be to pass the Success/Failure condition.
10
100
Which of these 4 histograms is bimodal?
Top Left
200
How can you get your graph to show all four quadrants equally?
Zoom 6
200
What is the probability of getting heads 6 out of 20 times?
Binomcdf (20, .5, 6) = 5.77%
200
If p is lower than any reasonable significance level, what type of error can occur?
Type 1 Error
200
Why do we use a randomization condition?
To ensure the sample is unbiased.
200
What instrument does Mr. A play?
GUITAR
300
What are the steps to find summary statistics from a list of data?
1. Stat
2. 1-Var Stats (L1/L2...)
300
What is the probability formula when there is A given B
P (A/B) = P (A ∩ B) / P (B)
300
Which test is used under this hypothesis?
Null: Height and Shoe Size are independent
Alternative: Height and Shoe Size are not independent
Chi Squared Test of Independence
300
For what tests do we have to include a linear NPP or symmetric histogram if "N" is less than 30 in our conditions?
T Test
2sampTtest
300
What is the outlier test?
Q1 - IQR x 1.5
Q3 + IQR x 1.5
400
What is the worst thing you can have on your calculator?
Stat Wizards
400
What is the sample size in a 90% confidence interval with a margin of error at .08 and p value of .3.
89
400
How do you find T* for Linear Regression?
InvT(c+1/2 , n-2)
400
What is the total number of Tests and Confidence Intervals we have USED in this course?
13
400
What is the coefficient of determination and what does it represent?
r2
It determines the proportion of variance in the dependent variable that can be explained by the independent variable
500
What do we do to our list when we want to find a matched pairs test?
Find the difference of L1 and L2 and plug that into L3
500
To cut the margin of error in half, what do we have to do to the sample size?
Quadruple the sample size.
500
What are the three ways the power of a test can be increased?
Increase sample size
Decrease standard error
Increase alpha
500
What is the condition that is only used on one specific type of test, and none other?
P Pool the S/F on 2PropZTest
500
What is the name of the formula used to decide whether a model is skewed or not?
Pearson's Coefficient of Skewness