Fundamental Statistic Class

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Ebppb1969

Mathematics

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True / False 1 ________ If a variable has a skewed right distribution, then the median would be less than the mean. 2 _________Suppose the variable pain was recorded from 1 to 4, where: 1=no pain, 2=low pain, 3=moderate pain and 4= max pain. Then pain would be considered a quantitative variable. ----------------------------------------------------------------------------------------------------------------------------------------------Explain why the following sentence is false. 3 It is possible that the variable gender in a population has a normal distribution. -------------------------------------------------------------------------------------------------------------------------------------------------Fill in the following blanks with either a word or short phrase 4 One of the first things you would do when performing a data analysis is __________________________________ _____________________________________________________________________________________________ -----------------------------------------------------------------------------------------------------------------------------------------------------Essay question (require 1 or 2 sentences) 5 What is the difference between a bar graph and a histogram ___________________________________________ _____________________________________________________________________________________________ ----------------------------------------------------------------------------------------------------------------------------------------------------------The following are problems (these require calculations) 6 Calculate the mean, median, standard deviation and the IQR for the following data set: 278 , 280, 297 , 275 , 310 , 282 , 300 , 280 , 286 , 358 , 214 , 272 7 In problem number 6, draw the modified boxplot. 8 The distribution of hours of sleep per week night, among college students, is found to be normally distributes, with a mean of 6.5 hours and a standard deviation of 1 hour. a) What range contains the middle 80% of hours slept per week night? b) What percent of college students sleep less than 5.o hours per week night?
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Running head: STATISTICS

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STATISTICS:
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STATISTICS
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True / False
1 __True______ If a variable has a skewed right distribution, then the median would be less than the
mean.
2 True scale suppose the variable pain was recorded from 1 to 4, where: 1=no pain, 2=low pain,
3=moderate pain and 4= max pain. Then pain would be considered a quantitative variable.
This is so since the variable pain is being measure on a numerical
Explain why the following sentence is false.
3 It is possible that the variable gender in a population has a normal distribut...


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