A hypothesis test comparing two population means results in a P-value of 0.032. Which of the following is a proper conclusion?
1) The probability that the null hypothesis is true is 0.032.
2) The probability that the alternative hypothesis is true is 0.032.
3) None of the above are proper conclusions.
4) The difference in population means is 0.032.
5) The difference in sample means is 0.032.