Question

A law professor wants to demonstrate how accurate eye witness testimony often is. He shows 15 subjects a video in which the robbery scene is suddenly inserted and asks the subjects to describe the robber, including his age which was 29. The subjects' average judgment of the robber's age was 25.8 years with a variance of 10.03. Test to see if the subjects accurately judged the robbers age. a= .01

A. H0: ?

B. H1: ?

C. Test statistic for a single mean t= x-u/Sx

D. Estimated Standard Error: Sx= s/sqaure root of N

E. Describe and conclude about H0

Please help explain this to me, I don't even know where to begin.

Answer 1