A candy manufacturer wants to check if the weight of a piece of candy they make is different from 1100 milligram. In a random sample of 121 candy, the mean weight is 1190 and standard deviation 370. Test at 0.05 significance level. Find 1. the test statistic of the test [ Select ] 2. the p-value of the test [ Select ] 3. the sample size needed to estimate the mean weight within the margin of error of 60 milligrams with 95% confidence [ Select ]