Author Question: An experiment in which neither the experimental unit nor the researcher in contact with the ... (Read 58 times)

pragya sharda · **on:** Jul 24, 2018

An experiment in which neither the experimental unit nor the researcher in contact with the experimental unit knows which treatment the experimental unit is receiving is called a ________________ .

A) double-blind experiment B) single-blind experiment
C) randomized block design D) matched-pairs design

Question 2

The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a standard deviation of 0.12 ounce.

Every can that has more than 12.30 ounces of soda poured into it causes a
spill and the can needs to go through a special cleaning process before it can be sold. What is the mean amount
of soda the machine should dispense if the company wants to limit the percentage that need to be cleaned
because of spillage to 3?
A) 12.0744 oz B) 12.5256 oz C) 12.0396 oz D) 12.5604 oz