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Discovering Statistics

Statistics

Quiz 10 :

Comparing

Quiz 10 :

Comparing

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

Answer:

C

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

D

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

C

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Which of the following is incorrect?
Multiple Choice
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ANOVAs cannot be used when testing data collected in educational research as it cannot be applied to social science.
True False
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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
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Which of the following distributions is used for accepting the null hypothesis?
Multiple Choice
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Any difference in population means in analysis of variance will inflate the error sum of squares.
True False
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In a two-way ANOVA,the interaction between factors 1 and 2 should be tested first.
True False
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The coefficient of determination is denoted by?
Multiple Choice
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The probability that it is not small if bought by an administrator is?
Multiple Choice
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Using the same data set,the probability that a student bought the coffee is?
Multiple Choice
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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
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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
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What does ANOVA stand for?
Multiple Choice
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The calculation for the sum of squares due to column factor for one-way ANOVAs is given by?
Multiple Choice
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Into how many rows in a two-way ANOVA is total variance partitioned?
Multiple Choice
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The treatment sum of squares measures the variability of the sample treatment means around the overall mean.
True False
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When sample size is large,which of the following assumptions can be ignored?
Multiple Choice
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What type of data are best analysed in ANOVA?
Multiple Choice
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