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# Discovering Statistics

Statistics

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## Quiz 10 : Comparing

In a two-way ANOVA,the error sum of squares can be calculated by?
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Multiple Choice

C

How are the degrees of freedom for interaction denoted for data displayed in columns (c)and rows (r)?
Free
Multiple Choice

D

ANOVAs evaluate how likely differences between conditions are due to?
Free
Multiple Choice

C

Which of the following is incorrect?
Multiple Choice
ANOVAs cannot be used when testing data collected in educational research as it cannot be applied to social science.
True False
The number of degrees of freedom is the number of values in the final calculation of a statistic that are free to vary.
True False
Which of the following distributions is used for accepting the null hypothesis?
Multiple Choice
Any difference in population means in analysis of variance will inflate the error sum of squares.
True False
In a two-way ANOVA,the interaction between factors 1 and 2 should be tested first.
True False
The coefficient of determination is denoted by?
Multiple Choice
The probability that it is not small if bought by an administrator is?
Multiple Choice
Using the same data set,the probability that a student bought the coffee is?
Multiple Choice
Cups of coffee are sold at the Skool Café in three sizes (S,M,L),and customers fall into three categories (academics,administrators,students).The numbers of cups sold in a working day are as follows. Small Medium Large Academics 12 25 27 Administrators 19 26 4 Students 30 10 11 Selecting one cup sold at random,the probability that it will be a large cup is?
Multiple Choice
A two-way ANOVA is conducted and the error sum of squares is worked out as 140.59.If the researcher chooses to ignore one of the factors and perform a one-way ANOVA with the same data,the error sum of squares will be smaller than 140.59.
True False
What does ANOVA stand for?
Multiple Choice
The calculation for the sum of squares due to column factor for one-way ANOVAs is given by?
Multiple Choice