please help

(1 point) Mike thinks that there is a difference in quality of life between rural and urban living. He collects information from obituaries in newspapers from urban and rural towns in Idaho to see if there is a difference in life expectancy. A sample of 7 people from rural towns give a life expectancy of i, = 80.6 years with a standard deviation of s, = 9.8 years. A sample of 13 people from larger towns give x; = 80 years and su = 6.43 years. Does this provide evidence that people living in rural Idaho communities have different life expectancy than those in more urban communities? Use a 1% level of significance. (a) State the null and alternative hypotheses: (Type \"mu_r\" for the symbol p, , e.g. mu_r not = mu_u for the means are not equal, mu_r > mu_u for the rural mean is larger, mu_r