a) The key phrase in the claim is “less than.” The less than sign < is only allowed in the alternative hypothesis and we are testing against the national average. The equality always goes in the null ...a) The key phrase in the claim is “less than.” The less than sign < is only allowed in the alternative hypothesis and we are testing against the national average. The equality always goes in the null hypothesis H 0 and the alternative hypothesis H a will be a left-tailed test with a less than sign <, a two-tailed test with a not equal sign ≠, or a right-tailed test with a greater than sign >.
a) The key phrase in the claim is “less than.” The less than sign < is only allowed in the alternative hypothesis and we are testing against the national average. The equality always goes in the null ...a) The key phrase in the claim is “less than.” The less than sign < is only allowed in the alternative hypothesis and we are testing against the national average. The equality always goes in the null hypothesis H 0 and the alternative hypothesis H a will be a left-tailed test with a less than sign <, a two-tailed test with a not equal sign ≠, or a right-tailed test with a greater than sign >.
