Use the Normal to Model the Distribution of Sample Means

Use the Normal to model the distribution of sample means.
-A manufacturer of cheese filled ravioli supplies a pizza restaurant chain. Based on
Data collected from its automatic filling process, the amount of cheese inserted into the
Ravioli is normally distributed with a mean of 15 grams and standard deviation of 0.15
Grams. To make sure that the automatic filling process is on target, quality control
Inspectors take a sample of 25 ravioli and measure the weight of cheese filling. What is
The standard deviation of the sampling distribution of the sample mean weight?

A) 0.006 grams
B) 0.03 grams
C) 0.3 grams
D) 0.06 grams
E) 3 grams