A study is conducted to estimate the average difference in the cost of analyzing data using two
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Question:
A study is conducted to estimate the average difference in the cost of analyzing data using two different statistical packages. To do so, 15 data sets are used. Each is analyzed by each package, and the cost of the analysis is recorded. These observation result :
Find the set of difference scores subtracting in the order package I minus package II. Find d and Sd. d is the sample mean for the differences.
Test if there is any difference between the costs of analyzing data using the two packages. Please write down the null and alternative hypotheses, the function you use, the p-value for the test and your conclusion at ?=0.05 level.
Related Book For
Mathematical Statistics with Applications in R
ISBN: 978-0124171138
2nd edition
Authors: Chris P. Tsokos, K.M. Ramachandran
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