Hypothesis Testing: One Sample Tests of Significance Flashcards Preview

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Flashcards in Hypothesis Testing: One Sample Tests of Significance Deck (12)
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0
Q

The logical alternative to the null hypothesis

A

Rival Hypothesis

1
Q

The formal process of testing that an individual measurement or statistic (such as a mean) estimates some characteristic of a population

A

Hypothesis Testing

2
Q

The point in a sampling distribution in which one rejects Ho. Alpha is the probability of a Type I error.

A

Alpha Level

3
Q

A bell shaped sampling distribution that is derived with small samples and the population standard deviation in unknown.

A

T Distribution

4
Q

The assertion that an individual measurement or statistic (such as a mean) estimates (or points to) a reference population. Ho

A

Null hypothesis

5
Q

The number of numbers that free to take on a value without restriction.

A

Degrees of Freedom

6
Q

The interval in which some population parameter (such as a mean) exists with a given level of confidence, such as 95%

A

Confidence Interval

7
Q

A variable that takes on only two values

A

Binary Variable

8
Q

A distribution that is constructed of a statistic (such as a mean) from a very large number of equally sized samples.

A

Sampling Distribution

9
Q

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.

A

One sample z test

10
Q

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.

A

One sample t test

11
Q

The standard deviation of a statistic (such as a mean) from a sampling distribution

A

Standard Error