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Unformatted text preview: To do : Estimate the population standard deviation of all the measurements (in units of kPa to 3 significant digits). Solution : Example Given : Five measurements are made of the force required to break an expensive component (too costly to do more): 312.2, 320.6, 315.5, 314.1, and 319.6 lbf ( a ) To do : Estimate the population mean and its confidence interval for 95% confidence level. Solution : ( b ) To do : Estimate how many samples would need to be taken to reduce the confidence interval to ± 2.0 lbf. Solution :...
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This note was uploaded on 07/23/2008 for the course ME 345 taught by Professor Staff during the Spring '08 term at Penn State.
- Spring '08