ex2_f13a - STA 6166 Fall 2013 Exam 2 PRINT Name Unless...

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STA 6166 – Fall 2013 – Exam 2 – PRINT Name __________________________
Part 1: Multiple Choice:Q.1. A researcher selects a random sample of 15 individuals and asks each to estimatehis or her own weight. She then measures each individual's actualweight. She uses the data to see if there is significant evidence that individuals tend to underestimate their weights. Give her appropriate null and alternative hypotheses, wheredif= est- act0diffdiff0diffdiff0diffdiff):0:0):0:0):0:0AAAi HHii HHiii HHQ.2. A machine that fills cans with coffee is working properly if the standard deviation of net weights is small (less than 0.5 ounces). The production manager will take random samples of filled cans and measure their net weights. If his test shows significant evidence that the variation is too large, he will stop the filling process for corrections.000):0.5:0.5):0.5:0.5):0.5:0.5AAAi HHii HHiii HH:

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