The mean family income for a random sample of 700 suburban households in guinesstowne shows that a 90 percent confidence interval is ($47,250, $62,100). herman is conducting a test of the null hypothesis h0: µ = 45,000 against the alternative hypothesis ha: µ ≠ 45,000 at the α = 0.10 level of significance. does herman have enough information to conduct a test of the null hypothesis against the alternative?