Question

10 15 16 17 Egypt is equal to the life expectancy in Morocco. A new study has been made to see whether this has According to the historical data, the life expectancy in devlation of 2. sample standard deviations, since the samples that are used to compute them are quite large. At the 0.05 level of significance, is there enough evidence to changed. Records of 230 Individuals from Egvpt who died recently are selected at random. The 230 individuals lived an average of 63.6 years with a standard average of 63.0 years with a standard devilation of 2.7 years. Assume that the population standard deviation of the life expectancy can be estimated by the 7 years. Records of 275 individuals from Morocco who died recently are selected at random and independently. The 275 is lived arn support the daim that the life expectancy, ??, in Egypt is not equal to the life expectancy, ? 2, in Morocco anymore? Perform a two-tailed test. Then fil in the ate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of Carry your formulas.) H:0 x t (Round to at least three The two critical values at the 0.05 level of significance: (Round to at least three decimai places and the claim that the ife No

Answer 1

Ha· 44チ LTuoo talled) Test statistic ndon Ho, Mi 63.6-63 - 2.486 2. 2.49 > 1.96 ar 57. level ve dont fail to eject »4ppot oun claim that And coe