Trying to run a paired T-test on my data but getting this message: "Error in t.test(Nervous, Peripheral, paired = TRUE, conf.level = 0.95) :
object 'Nervous' not found"
This is the code I put in, I have not made any spelling errors so I have no idea what is going on here! Any help would be great
GroupA <- read_excel("GroupA.xlsx")