29 Jun SOC 345-The Data Worksheet contains variables each of which occupies
Question
1.The Data Worksheet contains variables each of which occupies:
a separate row
a separate worksheet
the first column
a separate column
the bottom row
2.Assigning the variable “gender” with a “1” for females and a “2” for males refers to value ________.
codes
assignments
descriptions
names
gradations
3.Value codes and labels are most appropriate for what type of variable?
metric
all variables
categorical
natural
none of the above; they are never appropriate
4.In differences testing the hypothesis that there is a true difference between the population parameters of the groups compared is known as the:
null alternative hypothesis
alternative hypothesis
null hypothesis
supportive hypothesis
intuitive hypothesis
5.We use regression intervals to estimate how close a sample finding is to the actual population parameter.
True
False
6.While you can compute a confidence interval for a percentage, this is not possible for an average.
True
False
7.When we calculate a confidence interval, it allows us to conclude that we have a certain (specified) degree of confidence that the population value (percentage or average) falls within the interval.
True
False
8.Not only must differences be statistically different, a manager must also determine if the significant differences are meaningful and useful.
True
False
9.If we want to know if there are differences between catalog buyers and non-catalog buyers, we could use tests for differences between two groups.
True
False
10.When a question has labels, i.e., “yes” or “no” answers, we can say the scale is metric.
True
False
11.Boolean relationships between two variables exist when one variable is present and the other variable is also present such as coffee orders being present at the presence of breakfast.
True
False
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