The table below shows the mean number of daily errors by seven air traffic controller trainees during the first two weeks on the job.We want to perform a paired t-test at α = .05 to see if the mean daily errors have decreased from Week 1 to Week 2. The right-tailed critical value at α = .05 is
A)1.895
B)1.943
C)2.447
D)2.365

Question

The table below shows the mean number of daily errors by seven air traffic controller trainees during the first two weeks on the job.We want to perform a paired t-test at α = .05 to see if the mean daily errors have decreased from Week 1 to Week 2.  The right-tailed critical value at α = .05 is
A)1.895 
B)1.943 
C)2.447 
D)2.365

Quizplus · Accepted Answer

The Answer of The table below shows the mean number of daily errors by seven air traffic controller trainees during the first two weeks on the job.We want to perform a paired t-test at α = .05 to see if the mean daily errors have decreased from Week 1 to Week 2.  The right-tailed critical value at α = .05 is
A)1.895 
B)1.943 
C)2.447 
D)2.365

The Table Below Shows the Mean Number of Daily Errors