Consider the following research hypothesis

Research hypothesis:"People taking the new cholesterol medication will have lower low-density lipoprotein (LDL; "bad cholesterol") than the national average LDL (=220).In other words, do people taking the new cholesterol medication have lower cholesterol than the national average cholesterol level (=220)?

For the following scenarios, Which of the following pairs of statistical hypotheses are most appropriate for the cholesterol example? indicatewhy each of the response options is or is not an acceptable pair of statistical hypotheses using the terminology we used in class (e.g., not exhaustive, not mutually exclusive, inclusion of zero). Hint: There is one which is most appropriate. Here is a sample:

Sample:HO: <220 andha:>220 Answer: Not exhaustive because the value of 220 is excluded.

1. HO: >220 andHA: <220
2. HO: 220 andHA: 220
3. HO: <220 andHA: 220
4. HO: 220 andHA: >220
5. HO: 220 andHA: <220