Quiz & Worksheet - Two-Tailed Test

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

A ________ is a statistical analysis designed to evaluate the probability of finding a particular value of a random variable as compared to the mean of all possible values.

test of significance test of criticality

probability curve standard normal distribution

Worksheet

Print Two-Tailed Test: Formula & Examples Worksheet

1. There are a few assumptions that must be met to run tests of significance that use z scores. Which of the following is NOT one of the assumptions that must be met?

A normally distributed random variable
A large sample (n > 30)
Independence of observations
A critial level set at alpha = 0.05

2. Which of the following is an appropriate null hypothesis?

The observed value will be greater than the mean (x > M)
The observed value will be less than the mean (x < M)
The observed value will be either greater than or less than the mean (x< M or x> M)
The observed value is no different than the mean (x = M)

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About This Quiz & Worksheet

Focus in on what you know about the two-tailed test with this quiz and worksheet. Different concepts associated with this subject will also be reviewed throughout the multiple-choice questions.

Quiz & Worksheet Goals

Prove beyond a doubt that you understand this subject by answering questions that deal with:

Kinds of statistical analysis
Null hypotheses
Analysis that uses z-scores

Skills Practiced

The opportunity to practice the following skills awaits you within this quiz:

Distinguishing differences - compare and contrast tests from the lesson, such as one-tailed and two-tailed
Interpreting information - verify that you can read information regarding when to reject a null hypothesis and interpret it correctly
Information recall - access the knowledge you've gained regarding hypotheses that work with two-tailed tests

Additional Learning

Students interested in pursuing more education about this topic can study the lesson associated with this quiz, titled Two-Tailed Test: Formula & Examples. This lesson contains information on: