3. To investigate whether online automobile insurance policies might be cheaper than the policies he can offer, a local insurance agent compared the

3. To investigate whether online automobile insurance policies might be cheaper than the policies he canoffer, a local insurance agent compared the automobile insurance premiums for five of his customerswith price quotations for the same coverage from online insurance companies. Results are shown in thetable. Test the null hypothesis that the mean of the difference in premiums for all automobile policiesis zero versus the relevant alternative, as indicated below. Use α = .01. Assume a normal distributionof differences.Online3914886777031008(a)