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Hypothesis test being conducted by the manager

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Reference no: EM133182877

A project manager is interested in whether or not new software will reduce his employee's project completion time on average. To evaluate the benefits of the new software, a random sample of 24 employees are chosen. Out of the 24 employees, 12 are randomly chosen to use the current software and the remaining 12 use the new software. Project completion times are as follows:

Current Technology      New Software

300                                        274

280                                        220

344                                        308

385                                        336

372                                        198

360                                       300

288                                       315

321                                        258

376                                        318

290                                       310

301                                        332

283                                        263

(a) Notice that the mean completion time using current technology is 325 hours and for the new software it is 286 hours. From this information, should we conclude the new software reduces project completion times on average? Why or why not? 

(b) Write out the hypothesis test being conducted by the manager. 

(b) Run the test in SAS and give the relevant values from SAS output here. What is your conclusion at α = 0.10? What is your conclusion at α = 0.05? What is your conclusion at α = 0.01?

Reference no: EM133182877

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