The specifications for a certain kind of ribbon call for a mean breaking strength of185 pounds. Suppose five piecesare randomly selected from different rolls. The breaking strengthsof these ribbons are 171.6, 191.8, 178.3, 184.9 and189.1 pounds. You are required to perform an appropriate hypothesis test by formulating the null hypothesism 185 against the alternative hypothesism< 185 ata= 0.05.

What conclusions can be drawn?

A.The null hypothesis will be rejected at 5% level of significance

B.More tests need to be carried out

C.No conclusions can be drawn

D.The null hypothesis cannot be rejected at 5% level of significance