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Question
44 A Pediatrician wants to know if number of children in the family is related to how early parents arrive for regularly scheduled pediatric visits. The data follow in terms of the number of minutes early. Analyze and interpret the data using the Kruskal-Wallis procedure.1 Child 2 Children 3 or More Children
10 1 0
8 0 0
15 2 2.5
5 3 1.75
9 1.5 2.75
12 20 6.5
14 7 13
11 6 0.5
21 4
Answer
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Related questions
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58 What happens to the standard deviation when a constant is added to each score? Use the following set of data, and a constant of 2 to illustrate your answer.
1 2 3 4
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d) The upper hinge
e) The lower hinge
f) H spread
g) Lower fence
h) Upper fence
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27+ Which of the following is NOT a method of describing data that reduces the role of outliers on the measurement of a data set's variability?
a) interquartile range
b) boxplot
c) range
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18+ People in the stock market refer to a measure called the "standard deviation," although it is calculated somewhat differently from the one discussed here. It is a good guess that this measure refers toa) the riskiness of the stock.b) the value of the stock.c) how much the stock price is likely to fluctuate.d) how much money you are likely to earn from buying that stock.
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15+ Data points at the extremes of the distribution have
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c) serves to anchor the box.
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8+ When calculating the standard deviation we divide by N-1 rather than N because the result is
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44 Algebraically, the mean = (ï“X)2/N.
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35 Which of the following is probably most useful in studies in which extreme scores sometimes occur but have no real practical significance?
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28 For the following data set [1, 9, 9, 9, 11, 28], which of the following is false?
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21 Suppose a sample of children reported how many voices they heard in their heads on a particular day, and that hearing voices was a relatively uncommon experience. In this case the mode
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18 is the symbol commonly used for the
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The previous graph is symmetrical.
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44 A researcher randomly assigned clients to two conditions (a wait-list control group and a hypnosis group) and measured their smoking reduction. Smoking reduction is an independent variable.
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43 A "variable" refers to data that is constant.