through (e) below. a. Is there evidence that the mean amount is different from 1.0 gallon? (Use =0.05.) Let be the population mean. Determine the null hypothesis, H0, and the alternative hypothesis, H1. H0:H1:1.01.0 What is the test statistic? ZSTAT= (Round to two decimal places as needed.) What is/are the critical value(s)? (Use =0.05.) (Round to two decimal places as needed. Use a comma to separate answers as needed.)