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Statistics Chapter 9 - Hypothesis Testing
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What is the process to test a hypothesis?
Identify the problem
Create a hypothesis
Test hypothesis against data
What is the Confidence Level?
What is the Significance Level?
What is the representation for Null Hypothesis?
What is the representation for Alternative Hypothesis?
What is the main rule of a hypothesis?
Hypothesis must be falsibiable
A hypothesis should be mutually what...?
Mutually exclusive and mutually exhaustive
What is the goal with hypothesis testing?
Try to reject the null
What is the notation for the one-sided "greater than" alternative/one-tailed, "upper-tail" test?
What is the notation for a one-sided, "less than" alternative/one-tailed, "lower-tail" test?
What is the notation for a two-tailed test?
is the chance of what?
Mistakenly rejecting a true null hypothesis
What is a Type I Error?
Rejecting
when it is true
Too skeptical
What is a Type II Error?
Accepting
what it is false
Being too gullible
= the probability of what?
P(Making a Type I Error)
= the probability of what?
P(Making a Type II Error)
?
1
What are the steps of the Critical Value approach?
Set up NULL and Alternative hypotheses
Choose a Significance Level
Collect sample data and compute value of test statistic
Determine critical value and rejection rule
Reject or fail to reject the null
What does the
separate?
Reject and do not reject regions
What is a p-value?
The probability of getting
or value more extreme
What are the steps of the p-value approach?
Set up NULL and Alternative hypotheses
Choose a Significance Level
Collect sample data and compute value of test statistic
Use test statistic to compute p-value
Reject or fail to reject null
What is the rejection rule for a p-value?
Reject
if p-value
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Author
honestkyle
ID
214397
Card Set
Statistics Chapter 9 - Hypothesis Testing
Description
Hypothesis Tesing
Updated
2013-04-19T01:23:01Z
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