t table A group of researchers are investigating whether ratings of musical genres (on a scale of 1-5) will differ statistically between elderly individuals and teenaged individuals. They recruit two samples: one with 15 elderly individuals and one with 15 teenagers. They then compare the mean ratings between the groups. For one musical genre, the sample mean for He elderly sample was X, =4.72 and the sample mean for the teenaged sample was X, =4.02. The estimated standard =0.65. Perform all 4 steps of an independent samples t-test to determine if there is a statistical green the mean ratings of the two samples (a=0.01). Tal