Two Sample Test for Independent Data

_1: represents the population mean for the first population, and

_2: represents the population mean for the second population.

(9) What is the null hypothesis, (Ho), and the alternate hypothesis, (H_A), for the independent samples data for the two-sided test for testing "no difference" or significant difference between the two means?

(10) What is the null hypothesis, (Ho), and the alternative/research hypothesis for the one-sided test for testing the hypothesis to test whether the mean of the population 1 is higher than the mean of the population 2?

(₁ > ₂)

(11) What is the null hypothesis, (Ho), and the alternative/research hypothesis for the one-sided test for testing the hypothesis to test whether the mean of population 1, is lower than the mean of population 2 ? (₁ < ₂)?