I'm confused as to how to answer this question.
Water witching, the practice of using the movements of a forked twig to locate underground water or minerals dates back over 400 years. Reliable evidence supporting or refuting water witching is hard to find. Personal accounts of isolated successes or failures tend to be strongly biased by the attitude of the observer. However, consider the following data of outcomes of wells dug in Fence Lake, New Mexico:
Of 29 "witched" wells, 5 were unsuccessful;
Of 32 "non-witched" wells, also 5 were unsuccessful;
What would you conclude? Give your reasoning.
I have no idea how to approach this problem! We are currently learning hypothesis testing for multiple samples (2). Please help me, this is due in 12 hours!