MATH 214 Study Guide - Midterm Guide: Box Plot, Standard Deviation, Normal Distribution
10 Jan 2019
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Instructions: answer all questions on the answer sheets provided. Clearly label each question with its problem number. Calculators are allowed, but you must show work for full credit: identify the type and the level of measurement of each variable described. [4 pt ea: dave has just returned from a road trip. She earns a bonus if she sells an average of 15 ads per month over a 6-month period. For the last five months she has sold an average of 13 ads per month. Use the balancing point interpretation of mean to calculate the number of ads she must sell this month in order to earn her bonus. Include a diagram illustrating your reasoning. (do not use the algebraic formula for mean at all!) [6 pt: what percent of evergo aa batteries last at least 188 hours? (round to the nearest percent. )
