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WorksheetsDescriptive Statistics and t-test
Total questions: 15
Worksheet time: 15mins
Name 3 measures of central tendency
Range
Mode
Median
Standard deviation
Mean
Name 2 measures of dispersion
Range
Mode
Median
Standard deviation
Mean
What t-test type compares the means for two groups?
Paired Samples
Independent
Dependent
Mixed
Which does NOT describe a Dependent t-test?
It is also known as Paired Sample Test.
It compares the median of the same group.
It compares the mean of the same group.
It compares data from different times.
Which best describes a t-test?
It is a type of descriptive statistics.
It is used to determine if there are significant differences.
It can be used as long as the data is not normally distributed.
All of the above.
Which is a symbol for a null hypothesis?
H1
H2
Ha
Ho
Which is true?
P-Value < 0.05 - there's statistical difference
P-Value < 0.05 - there's no statistical difference
P-Value > 0.05 - there's statistical difference
None of the above
The data in the picture:
is negatively skewed
positively skewed
symmetrical
The data in the picture:
is negatively skewed
positively skewed
symmetrical
A way to describe the shape of a data display that indicates most of the data is on one side of the display.
symmetric
skewed
uniform
unimodal
Is this data positively or negatively skewed?
Positively skewed
Negatively skewed
In SPSS data view, each row denotes
Sample
Variable
Scales
Data set
Select the correct SPSS path for doing independent sample t-test
Analyze - Compare means - One sample T test
Analyze - Compare means - Independent Samples T test
Analyze - Descriptive Statistics - One sample T test
Analyze - Compare means - Paired Samples T test
What is the most appropriate statistical techniques can adopt for the categorical data?
Mean
Median
Frequency
Range
t-test value always positive
True
False
