SOC202H1 Lecture Notes - Multiple Choice, Standard Score, Confidence Interval
Document Summary
Today we will talk about confidence interval. 10 things you should know about c. i: confidence intervals are all about range of possible values of a parameter expressed. Whether or not if it is high or not, it is not based on entire population. The quality of sample you have is essential. It is based on theoretical idea of the sample. If you can just come back to visualizing the concrete it will provide the estimate of the population. You have to translate it into a theoretical sample distribution. Very unlikely: cis are based on the notion that we use sample stats to estimate the value of a population parameter. Not a distribution of scores on the first test. The sample size matters and that is why sample size has influence on error: calculation for a ci is as follows (refer to the slide) Instead of memorizing formula the calculation is point estimate.