No... for example, a have a population A with mean of 4.8 , sd= 1.8 and number of 16 men. Population B with mean of 5.6, sd= 1.2 and number of 25 women. A want to perform t student Welch... see if mean A # mean B (different)- that is the H1(alternative hypothesis). How to I write population A in R studio to calculate t student? A< - c (n=16, mean=4.8, sd= 1.8) is not working...this R script is wrong... can you help me please? Thank you