Golf balls that are properly manufactured will have a reboundheight of 42 inches

Golf balls that are properly manufactured will have a reboundheight of 42 inches when dropped by a testing machine from a heightof 5 feet. The quality control inspector is concerned that a newmanufacturing machine is not properly calibrated and that theresulting golf balls are falling short of the desired height. Atrandom 100 golf balls were selected for a test. The test resultsindicated that the rebound height was 41.6 inches with a standarddeviation of 0.5. At the .05 significant level what is the resultof the test?A. There is no significant difference.B. A larger test sample is needed.C. There is a significant difference; the golf balls aredefected.D. A decision regarding a significant difference cannot bemade.