Calculate Spearman's correlation coefficient for the data set.
rS = -1
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15
Which r value best describes this data set? Why? r = 1, r = -0.4, r = 0.7
r = 0.7
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Calculate Spearman's correlation coefficient for the data set.
rS = 1
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15
Calculate Pearson's product-moment correlation for the data.
rP = -0.874
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Answer a
Negative correlation. As prices increase, the number of tickets sold is likely to decrease. Causal. Less people will be able to afford tickets as the prices inc
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20
What is the line of best fit, according to least squares regression?
a = -.273, b = 5.51
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20
Find the mean point.
mean point = (50, 22.63)
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20
What is the sample standard deviation of the time in hours?
7.35
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What is the sample standard deviation of the art project?
7.680422442 == 7.68
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How would you construct a scatter diagram for the data, by eye?
Mean point = (74.5, 74.1)
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15
What is the population standard deviation of the mathematics test?
6.946221 == 6.95
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15
Describe the correlation between the two data sets.