
P&S CT-6 FLASHCARD
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1.
FLASHCARD QUESTION
Front
What is a null hypothesis?
Back
A null hypothesis is a statement that there is no effect or difference, used as a basis for statistical testing.
2.
FLASHCARD QUESTION
Front
What is an alternative hypothesis?
Back
An alternative hypothesis is a statement that indicates the presence of an effect or relationship in a statistical test.
3.
FLASHCARD QUESTION
Front
What is a Type I error?
Back
A Type I error is the incorrect rejection of a true null hypothesis.
4.
FLASHCARD QUESTION
Front
What is a Type II error?
Back
A Type II error is the failure to reject a false null hypothesis.
5.
FLASHCARD QUESTION
Front
What does a one-tailed test assess?
Back
A one-tailed test assesses the significance of a sample statistic in one direction.
6.
FLASHCARD QUESTION
Front
What does a two-tailed test assess?
Back
A two-tailed test assesses differences in both directions from a hypothesized value.
7.
FLASHCARD QUESTION
Front
How is a confidence interval constructed?
Back
A confidence interval is constructed using the formula: sample mean ± (critical value × standard error).
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