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论文作者:留学生论文论文属性:作业指导 assignment guidelines登出时间:2010-05-19编辑:steelbeezxp点击率:5699
论文字数:800论文编号:org201005191706398143语种:英语 English地区:丹麦价格:免费论文
(2 marks)
(d) Use Excel to construct an ogive (cumulative percentage ogive) for the data in (c).
(3 marks)
留学作业定做
(e) Using the Descriptive statistics function in the Data Analysis tools, generate the table of
Summary statistics for the life expectancy ages of people from Asian and African countries.
Round all statistics with multiple decimal points to one decimal point.
(4 marks)
(f) Use the Data Analysis Plus tools, installed from your CD to prepare a box plot for the life
expectancy ages of people from Asian and African countries. Generate the two box plots
simultaneously to ensure you have the same scale on the x axis for both box plots. Include
the five-figure summary with each box plot.
(7 marks)
Use the output generated in parts a. – f. to help you answer the following questions.
(g) Compare the measures of central tendency for the life expectancy of people from both Asian
and African countries. Do the data provide evidence to suggest that the people in Asian
countries live longer than the people in African countries? Explain.
(5 marks)
(h) What is the value of the skewness measure from the summary statistics for the life
expectancy for people from African countries? What does this indicate about the distribution
of the life expectancy of African countries? Include three other statistical reasons from the
output provided which are consistent with the distribution based on the skewness measure.
Should we use the mean or median as a measure of central tendency for the life expectancy
of African countries? Explain.
(5 marks)
5
(i) Are there any outliers evident from the boxplot showing the life expectancy of people from
African countries? If so, what value(s) are these? How do you determine whether there are
any outliers in the boxplot?
( 3 marks)
Question 2
A sporting- goods store kept a record of the sales of five items for one randomly selected hour
during a recent sale. (B = baseballs, G = golf balls, T = tennis balls, S = soccer balls, F =
footballs).留学作业定做
F B B B G T F G G F S
G T F T T T S T F S S
G S B
(a) Enter the sales data into a single 本论文由英语论文网提供整理,提供论文代写,英语论文代写,代写论文,代写英语论文,代写留学生论文,代写英文论文,留学生论文代写相关核心关键词搜索。