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Essay / Research Paper Abstract
A 7 page paper answering four statistics questions focusing on ANOVA problems. Problem topics include ABC Corporation and Riverside, CA employment; trash bag strength; ColorSmart-5000 televisions; and a comparison between the records of Arnold Palmer and Tiger Woods. Bibliography lists 3 sources.
Page Count:
7 pages (~225 words per page)
File: CC6_KSstatsWk2Ques.rtf
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Unformatted sample text from the term paper:
ABC Corporation reports that of those California residents who began a new job during the past 12 months, the mean length of time that these individuals have
been employed is 17 weeks. The Chamber of Commerce for the City of Riverside commissioned a study of the local business climate to find that newly-hired employees in Riverside
have been on the job a mean length of time of 18.69 weeks, as seen in the table below. The problem is how
to regard the differences found between means for the entire state and that for Riverside only. It is assumed that methods are valid and data are correct. It
appears that the economy of Riverside has been more favorable than that of the state overall, but it is quite possible that those appearances are not entirely accurate. Questions
Descriptive statistics as returned by Excels "descriptive statistics" data analysis function are presented in the table below. Included in the table is the
confidence interval found in Excel using the "=CONFIDENCE(alpha,standard deviation,size)" formula. The values used in that formula are: Alpha (level of significance) 0.01 Standard deviation 8.754 Size (sample size) 16
In a hypothesis test, level of significance is . The null hypothesis H0 is that there is no difference between employment
length times. The decision rule is: Reject H0 if t > t (Problem category, n.d.) The test statistic used is the t
test, because the standard deviation of the population is unknown. This is calculated in the following manner: Thus t = 0.771,
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