POLSCI 3NN3 Chapter 6: ASSIGNED READING - WEEK SIX- ESTIMATION PROCEDURES

• School: McMaster University
• Department: Political Science
• Course: POLSCI 3NN3
• Professor: Todd Alway

Document Summary

0. 025 of probability placed in lower and upper tails. Assigned reading: 0. 05 has z score of (cid:883). (cid:891)(cid:888, constructing an interval estimate based on 1. 96z leads to, 95% probability that interval captures the population value. 6. 4 interval estimation procedures for sample means (large. Samples: confidence interval for sample mean (formula) = the z score as determined by the alpha level. = the standard error of the mean c. i. For when the value of the population standard deviation ( ) is known. 3: step two: calculate, step one: insert known values level; alpha therefor is 0. 05. 0. 05 has a z score of (cid:883). (cid:891)(cid:888: formula: c. i. = (cid:4672) (cid:4673) c. i. =(cid:883)(cid:882)(cid:887) (cid:883). (cid:891)(cid:888)( (cid:883)(cid:887) (cid:884)(cid:882)(cid:882)) c. i. =(cid:883)(cid:882)(cid:887) (cid:883). (cid:891)(cid:888)( (cid:883)(cid:887)(cid:883)(cid:886). (cid:883)(cid:886)) c. i. =(cid:883)(cid:882)(cid:887) (cid:883). (cid:891)(cid:888)(cid:4666)(cid:883). (cid:882)(cid:888)(cid:4667) c. i. =(cid:883)(cid:882)(cid:887) (cid:884). (cid:882)(cid:890) Assigned reading: example: estimating average iq of a community. Epsem sample of 200 residents, sample mean iq of 105, and the population standard deviation is 15.