To test whether smoking status and suffering from heart diseases are independent or not, a random sample is selected and the following data are obtained: Suffer from heart disease Smoking Yes No Total status Smoker 29 41 70 Nonsmoker 11 119 130 Total 40 160 200 a) Here, the null hypothesis is Ho: Smoking status and suffering from heart diseases are b) The expected frequency for smoker vs does not suffer from heart disease is c) The test statistic =| d) X0.10 e) The decision is to Ho