Give a value of Z that will give a result significant at the

Give a value of Z that will give a result significant at the 5% level...

Consider a significance test for a null hypothesis vs. a two-sided alternative with a z-test statistic. Give a value of z that will give a result significant at the 5% level but not at the 1% level. Z = 1.645 z = -2.17 z = -2.65 There is no such z-value.