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15
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True or False: The Null Hypothesis is a statement there is no significant difference or effect in the research observations.
True
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15
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For comparing the means of two separate groups, which is the best test?
Chi-squared
Regression
ANOVA
Independent T-test
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15
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What does a p-value represent in statistical tests?
The probability of the obtained results when null is true
A significance level
The variance in the sample population
The sample mean
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trap
No points!
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fairy
Take points!
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25
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fairy
Take points!
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20
25
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thief
Give points!
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25
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What are examples of a categorical variable?
Occupation
Education level
Animal Species
All the answers
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seesaw
Swap points!
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shark
Other team loses 5 points!
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rocket
Go to first place!
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thief
Give points!
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What is a Confidence Interval?
95% confidence interval, means 95 out of 100 times
Provides a specified level of confidence for an estimate
All of the above
Range of values likely to Include parameter of interest
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15
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Since p (.04) < a (.05), p < Îą, do we accept or reject the null hypothesis?
We reject the null hypothesis
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True or False: A variable is a factor that can vary or change?
True
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True or False: A discrete variable can only take on a finite number, such as the number of students in a class??
True
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15
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What are Descriptive statistics?
Graphs and charts to visually represent the data
All of the answers
Measure of variability (data spread)
Measures of central tendency
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15
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What does correlation between two variables mean?
Two variables that can take on the same value
A variable that is continuous
The Extent to which 2 or more variable fluctuate together
None of the answers
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baam
Lose 25 points!
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seesaw
Swap points!
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shark
Other team loses 10 points!
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lifesaver
Give 10 points!
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baam
Lose 25 points!
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fairy
Take points!
5
10
15
20
25
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rocket
Go to first place!
Okay!
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lifesaver
Give 15 points!
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15
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What is a Parameter?
A numerical characteristic of a population
A sample Statistic
A value that divides a list of numbers into quarters
A value below which a given percentage of observations fall
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15
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True or False: A Chi-square test assesses the differences between two categorical variables?
True
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