Stuck with this confusing business statistics question. Help me pls?
A machine used to cut aluminium plates can be adjusted to produce plates that are of different average thickness but always with a standard deviation
A machine used to cut aluminium plates can be adjusted to produce plates that are of different average thickness but always with a standard deviation of 0.018cm. If the manufacturer wishes to ensure that no more than 2.5% of plates produced are less than 0.3cm thick, determine the minimum value that she can choose for the average thickness of the plates?
or:A machine used to cut aluminium plates can be adjusted to produce plates that are of different average thickness but always with a standard deviation of 0.018cm. If the manufacturer wishes to ensure that no more than 2.5% of plates produced are less than 0.3cm thick, determine the minimum value that she can choose for the average thickness of the plates?
