I have 5 easy sentences need to correct<HELP>?

Question

I have five sentences need to correct.
I cant find errors>.<
pls help me to correct it.pls show me the right sentences here.
thank you for your kindness.

4. When alternative methods attempt to analyze unknown variables in an experiment, they have limitations.

5. The amount of computation on their method is less than the original MLE method, but it still requires much computational effort.

7. The SN ratio allows optimization of the parameter design procedure and that this procedure is decomposed into two smaller optimization steps.

8. The proposed method is accurate, effective and does not cost that much.

9. The derived solution not only provides a feasible strategy, but also measurements of the position are accurate.

Answer 1

4. Alternative measures attempting to analyze unknown variables in an experiment have limitations.

5. The amount of computation on their method is less than on the original MLE method, but still great.

7. The SN ratio allows optimization of the parameter design procedure and allows that this procedure is decomposed into two smaller optimization steps.

8. The proposed method is accurate, effective, and cheap.

9. The derived solution not only provides a feasible strategy, but accurate measurements as well.

Answer 2

4.When alternative methods are used to attempt to analyze unknown variables in an experiment, their limitations are evident.

5.The amount of computation involved in this method is less than the original MLE method but is still substantial.

7.The SN ratio allows optimization of the parameter design procedure which can be further decomposed into two smaller optimization steps.

8.The proposed method is accurate, effective, and cost-efficient.

9.The derived solution is not only a feasible strategy, but also provides an accurate means of measuring the position.

Answer 3

4. Alternative methods that attempt to analyze unknown variables in an experiment have limitations.

5. The amount of computation in their method, even though it requires much computational effort, is less than the original MLE method.

7. The SN ratio, which allows optimization of the parameter design procedure, is decomposed into two smaller optimization steps.

8. The proposed method is accurate, effective, and does not cost much (not comparing 2 things, therefore no "that")

9. The derived solution not only provides a feasible strategy, but also provide measurements of the position that are accurate.

Answer 4

4. would you put a , after When? 5 , after but not before 7. I don't think "that" should be in there. 8. Again I don't think that should be in there. 9. I would say; its measurements of position are also accurate.

Answer 5

The squirrel holding a guitar and eating a cupcake put a curse on the mushroom.

Answer 6

8.The proposed method is accurate, effective and does not cost that much.

...accurate, effective, and...