A machine has been designed to make nails which are 8cm long with a standard deviation of 0.15cm. A sample of 48 nails is selected periodically to assess if the length is too variable from the standard of 8cm. From the sample of 48 nails, the mean is found to be 7.983cm. Assume the lengths are normally distributed.
-How much evidence is there that the nails made are not long enough?
A)Little to no evidence
B)Some evidence
C)Strong evidence
D)Very Strong evidence
E)Extremely Strong evidence

Question

Quizplus · Accepted Answer

The prompt does not provide any specific evidence or data to suggest that the nails made are not long enough, so there is little to no evidence.

A Machine Has Been Designed to Make Nails Which Are