SOC222H5 Lecture Notes - Decimal Mark, Statistical Significance, Simple Random Sample
Document Summary
1. 34e-2 = . 0134: 1. 34 is the starting number, e means move the decimal point, minus sign move to the left (negative direction, 2 is number of spaces to move the decimal point. If no minus sign, or a plus sign, move decimal point to the right. If we use sample how good is the estimate for the population. Population: group of cases we are interested in, we have a question about that. 1. group: sample: set of cases selected from the population, simple random sample random sample, each case in the sample has been selected from some procedure involving chance, each case in population has known probability of being selected. Samples & population estimates: the sample effect size is our estimate of the effect size in the population. Rick knows: the company has six employees- population. Here"s what rick doesn"t know: (the population data): Estimating a population mean from a sample: cathy and farrah.
