STAT 1000 Study Guide - Final Guide: Box Plot, Kilogram, Random Variable
2 Oct 2018
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Sample final exam a part a: the mean salary of the nine employees of a small business is ,000 per year. One employee, whose salary was ,000, was red. Two new employees, who will each be paid a salary of ,000, are hired. What is the new mean annual salary of the employees of the business? (a) ,000 (b) ,000 (c) ,000 (d) ,000 (e) ,000: a consumer group is testing a certain brand of light bulb. The lifetimes (in hours) for a sample of 12 light bulbs (the time until the bulbs burn out) are shown below: The time for a bulb that was still working at the end of the. The median lifetime for bulbs in this sample is: (a) 245 hours. (b) 291. 5 hours. (c) 236. 5 hours. (d) 317 hours. (e) impossible to calculate because we dont know the exact lifetime of three of the bulbs. The next two questions (3 to 4) refer to the following:
