SOLUTION: The state of CT claims that the average time on death row is 15 years. A random survey of 75 death row inmates revealed the average time on death row is 16 years with a standard d

Question 1182902: The state of CT claims that the average time on death row is 15 years.
A random survey of 75 death row inmates revealed the average time on death row is 16 years with a standard deviation of 5.7 years.
Conduct a hypothesis to test the state of CT's claim.
a. What type of test should be run?
t-test of a mean
b. The alternative hypothesis indicates a
two-tailed test
c. Calculate the p-value.
d. What is the decision?
We fail to reject the claim that the average time on death row is 15 years.

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
This is a t-test, 2-2way
critical value will be |t| ((df=74)}>1.99, if we use alpha=0.05 p{reject Ho|Ho true}
t=(x bar-mean)/s/sqrt(n)
=(16-15)*sqrt(75)/5.7
=1.519
fail to reject Ho; insufficient evidence that the average time is not 15 years.
p-value =0.13

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