A Nissan Motor Corporation advertisement read, "The averageman's I.Q. is 107. The average brown trout's I.Q. is 4. So whycan't man catch brown trout?" Suppose you believe that the browntrout's mean I.Q. is greater than 4. You catch 12 brown trout. Afish psychologist determines the I.Q.s as follows: 5; 4; 7; 3; 6;4; 5; 3; 6; 3; 8; 5. Conduct a hypothesis test of your belief. Usea significafcant level of 5%.
Standard Deviation of the I.Q listedis 1.62.