Behavioral Sciences STAT

What is the essence of all inferential statistics?

How is the relative frequency of an event defined?

An event's relative frequency in the population equals

Which of the following best describes knowing the relative frequency of every possible event in a population?

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?

Which of the following accurately describes a theoretical probability distribution?

What do we call the portion of the sampling distribution in which values are considered too unlikely to have occurred by chance?

What is the purpose of the critical value?

What is the critical value?

Which of the following is correct regarding means falling within the region of rejection when the critical values are $\pm 1.96 ?$

Which of the following is not true of the criterion?

What can we conclude when the absolute value of a z-score for a sample mean is larger than the critical value?

What can you conclude about a sample mean falling within the region of rejection?

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?

Which of the following is not a step when deciding whether or not a population is being represented?

When a z-score is not in the region of rejection, we should

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?

When +1.645 is used as the critical value instead of ±1.96 and the criterion probability is 0.05 in both cases,

When does sampling error occur?

________tries to ensure that every member of a given population has an equal chance of inclusion in a given study.