Regression 3 of 6 Covariance amp Correlation

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=0zZYBALbZgg

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

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