Exam 5: Introduction to Hypothesis Testing

Decision errors are possible in hypothesis testing because you are making decisions about _______ based on information in ________.

The logic of hypothesis testing involves figuring out the probability of getting a particular result if:

A one-tailed test is especially associated with:

Which of the following is a standard way for the significance level of the result of a hypothesis test to be reported in a research article?

In most behavioral and social science research articles, unless the researcher specifically states that a __________ test was used, it is assumed that it was a __________.

The usual rule in statistics is that a study cannot find the null hypothesis to be true-one can only reject or fails to reject the null hypothesis is simply uninformative and such studies tend not to be published. Why is this a problem in the field of psychology and other behavioral sciences?

The cutoff Z scores associated with a two-tailed test at the .01 significance level are _________.

A researcher wants to know if a new type of health insurance works better or worse than a standard form of health insurance. The hypothesis that there will be no difference between the new type of insurance and the old type of insurance is called the:

A study is done with a sample of one person. In the general population (Population 2), Population M = 100 and Population SD = 8. The cutoff Z score for significance in this study is a Z of 1.64. The raw score of the sample is 110. What should you conclude? __________.

The cutoff Z score on the comparison distribution is 1.64 and the sample value has a score of 1.32 on the comparison distribution.

A result is considered statistically significant when a sample value is so extreme that:

Which of the following is NOT a correct statement of one of the five steps of hypothesis testing?

What is a hypothesis?

In hypothesis testing, the __________ is the distribution to which you compare the score attained in your actual sample (based on the study results).

The 1% and 5% levels are the ________ levels of significance in behavioral and social science research.

Before conducting a study, a researcher determines the cutoff sample score on the __________ distribution at which the null hypothesis would be rejected if the sample is more extreme than this cutoff score.

For the following question(s): A study tests the prediction that people who spend a great deal of time on the beach have more eye problems than people in general. -The research hypothesis is __________.

Using the .01 level of significance instead of the .05 level decreases the chance of making a(n)_________.

For the following question(s): A researcher is interested in a new kind of exercise. This new exercise can be done by anyone because it does not require any equipment, and therefore could be potentially beneficial without cost to the person. The researcher is interested in whether this new exercise will reduce the rate of heart attacks in the people who participate in doing it. -What is the comparison distribution?

For a two-tailed test at the .05 significance level, the appropriate cutoff Z scores would be: