(CO7) A state Department of Transportation claims that the meanwait time for various services at its different location is morethan 6 minutes. A random sample of 16 services at differentlocations has a mean wait time of 9.5 minutes and a standarddeviation of 7.6 minutes. At ?=0.01, can the department’s claim besupported assuming the population is normally distributed?
@See text page 382
| Yes, since p of 0.043 is greater than 0.01, fail to reject thenull. 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 |
| No, since p of 0.043 is greater than 0.01, fail to reject thenull. Claim is alternative, so is not supported |
| Yes, since p of 0.043 is less than 0.09, reject the null. Claimis alternative, so is supported |