State whether the standardized test statistic z indicates that you should reject the null hypothesis. (a) zequals1.575 (b) zequals1.726 (c) zequalsnegative 1.539 (d) zequalsnegative 1.714 (a) For zequals1.575, should you reject or fail to reject the null hypothesis? A. Fail to reject Upper H 0 because z greater than 1.645. B. RejectUpper H 0 because negative 1.645 less than z less than 1.645. C. Fail to reject Upper H 0 because negative 1.645 less than z less than 1.645. D. Reject Upper H 0 because z greater than 1.645. Part 2 (b) For zequals1.726, should you reject or fail to reject the null hypothesis? A. Reject Upper H 0 because z greater than 1.645. B. Fail to reject Upper H 0 because z greater than 1.645. C. Fail to reject Upper H 0 because negative 1.645 less than z less than 1.645. D. Reject Upper H 0 because negative 1.645 less than z less than 1.645. Part 3 (c) For zequalsnegative 1.539, should you reject or fail to reject the null hypothesis? A. Fail to reject Upper H 0 because negative 1.645 less than z less than 1.645. B. Reject Upper H 0 because z less than minus 1.645. C. Fail to reject Upper H 0 because z less than minus 1.645. D. Reject Upper H 0 because negative 1.645 less than z less than 1.645. Part 4 (d) For zequalsnegative 1.714, should you reject or fail to reject the null hypothesis? A. Reject Upper H 0 because z less than minus 1.645. B. Fail to reject Upper H 0 bec