Question: How big a sample is necessary to estimate to within
How big a sample is necessary to estimate, to within 2 percentage points, the proportion of new graduates of a business program who are willing to relocate to find a job, with 90% confidence? If your college graduates only 350 students from the business program, what does this tell you?
Answer to relevant QuestionsA poll taken for Toronto Life magazine in the fall of 2005 surveyed 316 adults in the greater Toronto area. Four in 10 said they would keep their jobs even if they won $10 million in the lottery. Provide a 90% confidence ...An automobile association wants to demonstrate that maintaining tire pressure results in better fuel economy. The association selected a random sample of its members, and asked them to record their fuel consumption in litres ...Telemarketers generally read from a prepared script when they make their sales calls. A firm decides to change this prepared script, making it both friendlier and shorter. Daily sales are recorded for a random sample of ...Construct a 95% confidence interval for the average difference in prices quoted for the bath room renovation, based on the data in Exercise 9 above. A drill manufacturer wants to draw attention to a new design, which, theoretically, allows quicker changes between drill bits. The manufacturer gathers a random sample of 20 amateurs who have some experience using drills ...
Post your question