SOLUTION: A Nissan Motor Corporation advertisement read, “The average man’s I.Q. is 107. The average brown trout’s I.Q. is 4. So why can’t man catch brown trout?” Suppose you beli

Question 1148877: A Nissan Motor Corporation advertisement read, “The average man’s I.Q. is 107. The average brown trout’s I.Q. is 4. So why can’t man catch brown trout?” Suppose you believe that the brown trout’s mean I.Q. is greater than four. You catch 12 brown trout. A fish 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.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Mean is 59/12=4.916667
s=1.62
Ho: IQ<=4
Ha:IQ>4
alpha=0.05 p{reject Ho|Ho true}
test statistic is t df=11 =(x bar-mean)/s/sqrt(n)
critical value t>1.796
calculation is t=(0.916667)/1.62/sqrt(12))=1.96
reject Ho and IQ >4
p-value 0.038
RELATED QUESTIONS
Use the formula 𝑆 =(𝑄−4)/2 where Q is the input to a motor and S is the speed. (answered by ikleyn)

if p^2-q^2 = 48 and p-q = 12. What is the average of p and... (answered by mananth)

32x + q =107 where x is =... (answered by rfer)

Hello, Can u help me find the right equation for the problem below and also confirm the... (answered by stanbon)

Suppose the demand function for a monopoly's product is P=400-2Q and the average cost... (answered by ElectricPavlov)

The formula A = 3Ts+Qz/3T+Q gives a student's average, A, after T tests and Quizzes,... (answered by stanbon)

a) Determine the truth value of when : (i) (4 points) p is true and q is... (answered by jim_thompson5910)

The formula A=(2 Tt+Qq)/(2T+Q) gives a student’s average A after T tests and Q quizzes, (answered by josgarithmetic)

A baseball player has a batting average of 0.395. What is the probability that he has... (answered by stanbon)