Hypothesis Testing: One Sample Tests of Significance Flashcards
The logical alternative to the null hypothesis
Rival Hypothesis
The formal process of testing that an individual measurement or statistic (such as a mean) estimates some characteristic of a population
Hypothesis Testing
The point in a sampling distribution in which one rejects Ho. Alpha is the probability of a Type I error.
Alpha Level
A bell shaped sampling distribution that is derived with small samples and the population standard deviation in unknown.
T Distribution
The assertion that an individual measurement or statistic (such as a mean) estimates (or points to) a reference population. Ho
Null hypothesis
The number of numbers that free to take on a value without restriction.
Degrees of Freedom
The interval in which some population parameter (such as a mean) exists with a given level of confidence, such as 95%
Confidence Interval
A variable that takes on only two values
Binary Variable
A distribution that is constructed of a statistic (such as a mean) from a very large number of equally sized samples.
Sampling Distribution
z calculation where one tests the hypothesis that a sample mean points to a reference population mean. For this test, sample size needs to be at least 30 and the population standard deviation is known.
One sample z test
A t calculation where one tests the hypothesis that a sample mean points to a reference population mean. This test is calculated when the sample size falls below 30 and/or the population standard deviation is unknown.
One sample t test
The standard deviation of a statistic (such as a mean) from a sampling distribution
Standard Error
