The Weights of Soy Patties Sold by Veggie Burgers Delight

The weights of soy patties sold by Veggie Burgers Delight are normally distributed. A random sample of 15 patties yields a mean weight of 3.8 ounces with a sample
Standard deviation of 0.5 ounces. At the 0.05 level of significance, perform a hypothesis
Test to see if the true mean weight is less than 4 ounces.
The correct conclusion at the 0.05 level of significance is

A) Do not reject the null hypothesis.
B) Reject the null hypothesis.
C) Evidence suggests that the mean weight is less than 4 ounces.
D) Both A and C.
E) Both B and C.