The return from a given stock (lets call it Stock A) is 39p per share per week with a standard deviation of 14 and is considered to be normally distributed. A sample of 49 past weeks for a different stock (lets call it stock B) has yielded 44p per share per week.

Perform a hypothesis test, at a 5% significance level, to determine if Stock B has a better return than Stock A.

Your answer should show all the steps /workings.