Which of the following is an acceptable statement of a null and alternative hypothesis for testing a hypothesis about a population mean? If all answers are correct, select the last option below.
H0: µ = 10 vs Ha: µ > 10.
a. H0: µ = 10 vs Ha: µ < 10.
b. H0: µ = 10 vs Ha: µ ≠ 10.
c. All of the answers are correct.
