Chapters 1-2
Population is to parameter, as sample is to ____.
Statistic
What is the most common statistic we use from central tendency?
Mean
A standardized score with a sign that indicates the direction from the mean, and a numerical value equal to the distance from the mean measured in standard deviations is known as a ___ - ______.
Z-score
True or False: The means of the mean is equal to the mean.
True
What is Dr. Story's first name?
Paul
What letter symbolizes a population mean?
Mu
What is the formula for Degrees of Freedom (df)?
n-1
Which part of the z-score formula determines the sign for z?
Numerator
The central limit theorem tells us three things: Expected value of M, _____ ______ of M, and Shape.
Standard error
What does SI stand for?
Supplemental Instruction
What type of experiment uses a naturally occurring IV?
Quasi
"Unsquaring" the calculated variance will give us _____________.
Standard deviation
What are the units of measure called on the Z-line? (hint: should be three words total)
Standard deviation units
The two necessary conditions needed to conduct probability are (1) Random Sampling and (2) _________ _______ ___________.
Sampling with Replacement
What type of dog do I have?
A Corgi
What is the acronym used to remember the different scales of measurement?
NOIR
After adding the squared deviation scores up, we have now calculated ________.
Sum of squares
Solve for z.
z = (65-75)/5
-2
What column would we use for finding a proportion that covers over .50 of our normal curve?
Column (B) Body
What does the acronym “W.E.I.R.D” stand for?
Western, Educated, Industrialized, Rich, Democratic
A distribution where the scores pile up on the left side and taper off to the right is known as a _________ ________ distribution.
Positively skewed
What problem do we run into when dealing with the summation of deviation scores?
Zero problem
True or False: If given three of the four numerical values (z, μ, x, or σ), the missing value will ALWAYS be locked in and solvable.
True
Only positive Z-scores are reported in the Unit Normal Table because the distribution is _______.
Symmetrical
What is the rarest color a cat could come in?
White