. . . L 87% File Details PSY 205 - Quantitative Methods in Psych (26031) PSY 205, Winter 2022, Hart *Remember, you must show your work by hand (including formulas) to receive credit. 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. Use the 4-step hypothesis test for each. (8 pts each) Estimated Population Standard Sample Population Deviation Sample Significance Size (N Mean(p) (S) Mean (M) Tails Level (ox) a 16 100:31 2.00 100.98 1 (high predicted) 05 .05 (b) 16 47 4.00 00 2 1 (low predicted)