In a comparison of two methods for the determination of chromium in rye grass, t
ID: 787450 • Letter: I
Question
In a comparison of two methods for the determination of chromium in rye grass, the following results (mg kg-1 Cr) were obtained:
spooled = 0.295
spooled = 0.295
spooled = 0.285
A.spooled = 0.295
t = 4.56 t > tcrit With 95% confidence the difference between the two results is significant and the null hypothesis is rejected. B. spooled = 0.285 t = 4.07 t > tcrit With 95% confidence the difference between the two results is significant and the null hypothesis is rejected. C.spooled = 0.295
t = 4.56 t > tcrit With 95% confidence the difference between the two results is significant and the null hypothesis cannot be rejected. D.spooled = 0.285
t = 4.07 t > tcrit With 95% confidence the difference between the two results is significant and the null hypothesis cannot be rejected.please SHOW THE WORK, I NEED TO UNDERSTAND HOW IT WAS DONE
Explanation / Answer
Its option B
ie spooled = 0.285
With 95% confidence the difference between the two results is significant and the null hypothesis is rejected.