
267Data Analysis and Statistical Testing
6.15 A software company plans to adopt a new programming paradigm, that will
ease the task of software developers. To assess its effectiveness, 50software devel-
opers used the traditional programming paradigm and 50others used the new
one. The productivity values per hour are stated as follows. Perform a t-test to
assess the effectiveness of the new programming paradigm.
Statistic
Old
Programming
Paradigm
New
Programming
Paradigm
Mean 1.5 2.21
Standard Deviation 0.4 0.36
6.16 A company deals with development of certain customized software products.
The following data lists the proposed cost and the actual ...