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 75,000 with a standard deviation of5,000. A random survey of 9 MasterCard Gold cardholders resulted in a mean household income of 70,000 with a standard deviation of4,000. Test the claim at the 5
1) The null hypothesis is that there is no difference in the mean household income for credit cardholders of Visa Gold and of MasterCard Gold.
2) The null hypothesis is that there is a difference in the mean household income for credit cardholders of Visa Gold and of MasterCard Gold.
3) The null hypothesis is that the mean household income for credit cardholders of Visa Gold is greater than the mean household income for credit cardholders of MasterCard Gold.
4) The null hypothesis is that the mean household income for credit cardholders of Visa Gold is less than the mean household income for credit cardholders of MasterCard Gold.