a) If sample data are such that the null hypothesis is rejectedat the alpha=5% level of significance based upon a 2 tailed test,is H0 also rejected at the alpha=1% level of significance ?Explain. b) If a 2 tailed hypothesis test leads to rejection of thenull hypothesis at a certain level of significance, would thecorresponding 1 tailed test lead to rejection of the nullhypothesis ? Explain.