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What type of experimental design is organized like this:
Separate samples where each receives different levels of Independent Variable.
Independent Group
This is used to compare the sample mean to its population mean.
Z test
This is the Z test formula.
Zobt=( x̅ -µ)/ (σ /√ n)
This is where Dr. Bull is from.
Minnesota
What type of experimental design is organized like this:
One sample receives both levels of Independent Variable.
Repeated Measure
For the Z test formula, _________ on top needs to be greater than ________ on bottom.
Difference
Error
This is the Z test decision rule.
Zobt ≥ Zcrit
In class, what Independent variable example does Dr. Bull typically use to describe how the IV has multiple levels?
Treatment for Depression
The best samples are R________- and L________ .
Random and Large
True or False:
You always want the sample to be representative of the population.
False
(DEPENDS on the experimental design)
****DAILY DOUBLE****
What does "x̅ -μ" signify in Z test equation?
Difference between sample mean and population mean
Dr. Bull's grandchild liked to watch videos on about _____________, before he went to bed.
Trucks
****DAILY DOUBLE****
This type of probability is determined after data is analyzed.
Aposteriori
If Zcrit ≥ Zobt, is the Ho or Ha retained?
Ho
(Null Hypothesis)
What symbols represent the "expression of error" in the Z test formula?
σ/√ n
This is where most of life's answers can be found.
Back of the book.
One tail or Two tail:
Biofeedback training will decrease the number of headaches a patient experiences.
One Tail
****DAILY DOUBLE****
These are the 4 steps to perform the Z test.
1. Calculate Zobt using Z test formula
2. Find Zcrit (using table Dr. Bull provided)
3.Is Z obtained > Z critical ? Then look at the Ho to see what you can conclude about Ho.
4.Reject or accept Ho (Null).
What does x̅ ≠µ signify?
There is a significant sampling error/difference expected between groups.
In what country did Dr. Bull almost have his wallet stolen?
Namibia