QMS 102 Study Guide - Quiz Guide: Standard Deviation, Type I And Type Ii Errors, Statistical Parameter

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Margaret Buckby

Document Summary

Data is used to check whether a hypothesis is reasonable or not. We will either reject or fail to reject the null hypothesis. A statement that is accepted if we reject the. The probability of rejecting the null hypothesis when it is true. The probability of accepting the null hypothesis when it is false. Step 1: state the null and alternate hypothesis. Step 2: select the test statistic z-score or t-score? z-score: Can assume a normal distribution and have ____________ standard deviation (__) t-score: Can assume a normal distribution and have ____________ standard deviation (__) This is the probability that we mistakenly reject h0 when it is true. Use the sample data to calculate the z-score or t-score. Find the probability (p-value) associated with the sample z-score or sample t-score. N - xz ns - xt3. 1 hypothesis testing (mean) Based on the sample, there is not enough evidence to reject h0 .