Discussion:
Find the test statistic, p-value and critical value and state a final conclusion.
Caim: The mean IQ score of statistics professors is less than 120
sample data: n=40, mean of the values in a sample = 117, assume that the standard deviation = 14 and the significance level = 0.05
Calculate the test statistic ( round to nearest hundredth)
Find the P-value round to 4 decimal places as needed
Find the critical value, (round to nearest thousandth as needed)
choose one
a. there is sufficient evidence to support the claim
or
b. There is insufficient evidence to support the claim