Category Statistics
Hypothesis: Formulating Hypothesis: Steps in hypothesis testing: Null and alternate hypothesis: Types of test: Left tail, Right tail, Two tail test Formulating Hypothesis: Z-test for mean: Z-test for mean1: Hypothesis testing: T-test vs Z-test: T-test: Z-test: Chi-square: Types of error:
Sample statistics: We describe the sample which is subset of the entire population using sample statistics. The sample statistics usually characterize the sample and not the population. Sample statistics can broadly classified into two type – Standard deviation (SD) of… Continue Reading →
Probability distributions: Case: People who don’t smoke live longer than people who smoke. random variable: Any variable which is subjected to chance and the behavior of random variable is governed by their probability distributions. On studying a small group of people… Continue Reading →
Descriptive vs Inferential: Descriptive: everyday happenings such as accidents, prices of goods, business, incomes, epidemics, sports data, population data. Inferential: uses mathematical tools to make forecasts and projections by analyzing the given data Datatypes: Population and samples: Types of statistics:… Continue Reading →