Hypothesis testing: step-by-step, p-value, t-test for difference of two means - Statistics Help скачать в хорошем качестве

Hypothesis testing: step-by-step, p-value, t-test for difference of two means - Statistics Help

This entertaining video works step-by-step through a hypothesis test, using the difference of two means as an example. Helen wishes to know whether giving away free stickers will increase her chocolate sales. There are five steps: 0:25 Hypotheses 1:27 Significance Level 1:47 Sample 1:54 p-value 2:00 Decide This is a companion video for "Understanding the p-value".    • P-value in statistics: Understanding ...   The same data is analysed in "Two means t-test in Excel"    • Two means t-test in Excel - Statistic...   To find out what it means for a result to be statistically significant see Understanding Statistical Significance:    • Understanding Statistical Significanc...   For explanation about paired data see:    • Paired samples and independent sample...   And for analysis of paired data see:    • Two means t-test in Excel - Statistic...   See https://creativemaths.net/videos/ for all of Dr Nic's videos organised by topic. #DrNicStats #Statistics