
Now ultimately we want to know if hearing this song, on hypothesis testing in

lesson nine, will result in higher engagement and learning. So what statistic

should we calculate to determine this? Should we simply note whether or not the

sample means are less than or greater than the population mean? Or should we

calculate the actual difference between the population mean and the sample mean

for each measure, or should we found out where each sample mean falls on the

distribution of sample means from each population, or should we find how many

population standard deviations each sample mean is from the population mean?