Question

Help please!
A manufacturer of salad dressings uses machines to dispense liquid ingredients into
bottles that move along a filling line. The machine that dispenses dressings is working
properly when the mean amount dispensed is 330 mL. The population standard deviation
of the amount dispensed is 4 mL. A sample of 50 bottles is selected periodically, and the
filling line is stopped if there is evidence that the mean amount dispensed is different
from 330 mL.
Suppose that the mean amount dispensed in a particular sample of 50 bottles is 329.7 mL.
Is there evidence that the population mean amount

Answer 1

not that I'm an expert on statistics :)
but it looks like the question is incomplete .