In: Statistics and Probability
A state Department of Transportation claims that the mean wait time for various services at its different location is less than 6 minutes. A random sample of 16 services at different locations has a mean wait time of 9.5 minutes and a standard deviation of 7.6 minutes. At α=0.01, can the department’s claim be supported assuming the population is normally distributed? No, since p of 0.043 is greater than 0.01, fail to reject the null. Claim is alternative, so is not supported Yes, since p of 0.043 is less than 0.09, reject the null. Claim is alternative, so is supported Yes, since p of 0.043 is greater than 0.01, fail to reject the null. Claim is null, so is supported No, since p of 0.043 is greater than 0.01, reject the null. Claim is null, so is not supported
Claim is alternative, so is supported Yes, since p of 0.043 is greater than 0.01, fail to reject the null