A Probability Experiment Has Two Steps

question 139

Multiple Choice

A probability experiment has two steps. There are two possible results for the first step, call them "A" and "B". If the result for the first step was "A", then there would be 5
Possible results for the second step. If the result for the first step was "B", then there
Would be 12 possible results for the second step. How many possible outcomes are there
For this experiment?

• A) 60
• B) 17
• C) 8
• D) 12

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Definitions:

Rejection Regions

Specific areas in the distribution of a test statistic that, if the observed test statistic falls within, will lead to the rejection of the null hypothesis.

Standardized Test Statistic

A calculated statistic that measures the number of standard deviations a sample statistic lies from the null hypothesis, used in hypothesis testing.

Hypotheses

Statements set up for a statistical test that express the relationship between variables. There is usually a null hypothesis (no effect) and an alternative hypothesis (effect present).

Sigma

A symbol (σ) used in statistics to represent the standard deviation of a population.