An advertising executive claims that there is a difference in the mean household income for credit cardholders of Visa Gold and of MasterCard Gold A random survey of 11 Visa Gold cardholders resulted in a mean household income of $75,850 with a standard deviation of $11,300. A random survey of 7 MasterCard Gold cardholders resulted in a mean household income of $66,510 with a standard deviation of $9600, is there enough evidence to support the executive's claim? Let be the true mean household income for Visa Gold cardholders and be the true mean household income for MasterCard Gold cardholders. Use a significance level of a = 0.05 for the test. Assume that the population variances are not equal and that the two populations are normally distributed Step 3 of 4: Determine the decision rule for rejecting the null hypothesis Ho Round your answer to three decimal places. Answer 2 Points