Tests Of Significance Flashcards
The null hypothesis is stated in the form of…
An equality statement about a population parameter
Important assumptions/conditions always must be checked before…
Proceeding with a hypothesis test
The alternative hypothesis is stated in the form of…
An inequality statement about a population parameter
We attempt to show that a null hypothesis is unacceptable by showing…
It is improbable
The P-value
Is the probability of obtaining a sample statistic as extreme (or more extreme) as the one obtained if the null hypothesis is assumed to be true
When the P-value is small,…
We have evidence to reject the null hypothesis
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Type I error
The probability of mistakenly rejecting a true Ho
Type II Error
Probability of mistakenly failing to reject a false Ho
Power of a hypothesis test
The probability that a Type II error is not committed
Hypothesis tests are designed to measure…
The strength of evidence against the Ho
The Ha is one sided if…
There is an interest in deviations from the Ho in only one direction
