# Behavioral Sciences STAT

Mathematics

## Quiz 6 :Using Probability to Make Decisions About Data

Showing 1 - 20 of 54
What is the essence of all inferential statistics?
Free
Multiple Choice

D

How is the relative frequency of an event defined?
Free
Multiple Choice

C

An event's relative frequency in the population equals
Free
Multiple Choice

D

Which of the following best describes knowing the relative frequency of every possible event in a population?
Multiple Choice
When rolling a pair of fair dice, the probability of rolling a total point value of "7" is 0.17.If you rolled a pair of dice 1,000 times and the point value of "7" appeared 723 times, what would you probably conclude?
Multiple Choice
Which of the following accurately describes a theoretical probability distribution?
Multiple Choice
What do we call the portion of the sampling distribution in which values are considered too unlikely to have occurred by chance?
Multiple Choice
What is the purpose of the critical value?
Multiple Choice
What is the critical value?
Multiple Choice
Which of the following is correct regarding means falling within the region of rejection when the critical values are $\pm 1.96 ?$
Multiple Choice
Which of the following is not true of the criterion?
Multiple Choice
What can we conclude when the absolute value of a z-score for a sample mean is larger than the critical value?
Multiple Choice
What can you conclude about a sample mean falling within the region of rejection?
Multiple Choice
A study about the college aptitude of seniors at North City High School has resulted in a sample mean with a corresponding z-score of −2.00.If the critical value for the region of rejection is $\pm 1.96$ , what is the correct conclusion?
Multiple Choice
Which of the following is not a step when deciding whether or not a population is being represented?
Multiple Choice
When a z-score is not in the region of rejection, we should
Multiple Choice
A study about the college aptitude of seniors at South City High School has resulted in a sample mean with a corresponding z-score of +1.89.If the critical value for the region of rejection is $\pm 1.96$ , what is the correct conclusion?