The mean number of siblings for respondents in a survey is 3.76 with a standard deviation of 3.18. Calculate the Z score associated with two siblings.
What will be an ideal response?
-.55
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When judging a study's results, there are two important questions. They are:
A) How large is the power and how competent are the researchers? B) How stringent is the significance level and how small is the effect size? C) Is the result statistically significant and is the effect size large enough for the results to be meaningful? D) Is the study replicable and can we draw conclusions despite not having attained statistical significance?
Poorer people are less likely to be married that wealthier people
a. True b. False Indicate whether the statement is true or false
Cornelia used the student directory at her school to select a random sample of 100 students for her laboratory experiment on decision making. She then used a quota matrix containing the variables she felt would most likely influence decision making, and assigned people within each matrix cell alternately to the experimental and control groups. What method of selecting subjects was used?
a. nonprobability sampling b. probability sampling c. randomization d. matching e. simple random selection
Today, those who decide to marry tend to be more highly educated than those who do not.
Answer the following statement true (T) or false (F)