Question

A up and coming Olympic weightlifting star is trying to determine which of two lifting schools has stronger athletes. In a group of 12 randomly selected athletes, the average clean and jerk lift is 150lbs at Super Strong Weight Lifting with a standard deviation 5lbs. The average clean and jerk lift at Zeus Olympic Lifting in a group of 8 randomly selected athletes is 135lbs with a standard deviation 7lbs. We want to test our claim that Super Strong's athletes are stronger than Zeus's. Use a 1% level of significance. Please answer the following based on the previous information. Your null hypothesis in this problem is: Ho: usuperstrong uzeus Ha: usuperstrong uzeus Ho: usuperstrong > uzeus Ha: usuperstrong > Hzeus

Answer 1

in Ho: M supr strong - Mzeus (vs) Haikseepersoon zeus. som-1) s. +6221053 = (4x52) +(787232343333 (n-1 tt12- litz - 343333 (11) The test statistic t- 7,5 = 150-135) -100 =150b09 (111) dt 18 p-value to.ooool soch ha) √ 34.3333(4 ) (V) at t=1% (col) level of significance Dcusion: Reject the Ho Conclude that super strongs athelets are stronger than zeus's