Thirty-nine different video games showing drug use were observed. The duration times of drug use (in seconds) were recorded. When using this sample for a t test of the claim that the population mean is greater than 74 sec, what does df denote, and what is its value?

x-3y=4

step-by-step e

i need a diagram

step-by-step explanation:

no

its line 2 i just added the rest or else it wouldn't let me answer

37 = ending with 7

unit's digit in the cube..3

56 = ending with 6

unit's digit in the cube..2

133 = ending with

unit's digit in the cube..7

hope it : ( : )