Home Library Explore SAT

Home Library Explore SAT

SI session Exam #2 Flashcards | StudBud

Explore/SI session Exam #2

SI session Exam #2

11 terms·StudBud Administration

Imported from external platform

Flashcards11 cardsFPractice quizPHost liveL

Questions 11

Answers

1
What is Random Sampling
sample that is random
each individual in a sample has an equal chance of being selected
each individual in a population has an equal chance of being selected
sample of individuals who are able and willing to participate
2
Is this an example of a Type I or Type II error
Type I
Type II
Type IIII
3
α is to type I error as β is to...
Type I error
null
Type II error
alternative
4
A manager claims that his pizza shop sells 200 pizzas a day. The hypotheses would be -- H0: μ=200 H1: μ≠200
True
False
5
What is a Z-Score
define the location of a score in terms of the mean
indicates if X is above or below the mean
identify and describe the exact location of a score in a distribution
original scores that are the result of a measurement
6
What is Sampling Error
sample consists of many errors
natural discrepancy between sample statistic and population parameter
collection of sample means for all random samples of N
distribution of sample statistics from selecting all samples
7
The properties of a distribution are: highest frequency in middle, asymmetrical, and frequestions taper off toward ends
False
True
8
What is the Critical Region?
probability value used to define concept of "very unlikely"
extreme sample values defined by alpha level to be obtained if null is true
level of signifigance
exact location of a score in distribution
9
Is this an example of a Type I or Type II error?
Type II
Type I
Type III
10
What is Power?
probability the test will correctly reject a false null
provides a measurement of the absolute magnitude of a treatment effect
size of treatment effect
size of the difference between sample and population
11
A directional test is two-tail and a non-directional is one tail
False
True