Reference no: EM132120753

In Australia, the overall five-year survival rate for breast cancer in females is 90%. A random sample of 420 breast cancer patients in a rural region was randomly selected and followed up after 5 years. The results show that 365 of them survived after the 5 years of follow up period. Four students used these results as a hypothesis test to indicate whether the proportion of survival in this rural region is not the same as the national rate of 90%, using a 1% level of significance. Choose the correct calculation ( Note: we normally would prefer to obtain the confidence interval for the estimated proportion and the associated p-value, which provide the level of evidence against the null hypothesis.)