I need all the work

1. In each of the following studies, a single sample's mean is being compared to a population with a known mean but an unknown variance. For each study, decide whether the result is significant. Study Sample Size Population Estimated Sample Tails Significance (N) Mean Population Mean (M) Level Standard Deviation (S) (a) 16 100.63 2.00 100.84 1 (high predicted) .05 (b) 16 .40 4.00 .00 2 .01 (c) 17 70.5 9.00 42.00 1 (low predicted) .01