no diet. A random sample of 100 adults with high A1C levels, on no special diets,High A1C Levels (a test for diabetes) can be reduced by either a low-fat diet or amedication such as metformin. Researchers would like to test the effectiveness ofmetformin verses a placebo, and to note whether the effectiveness of diet versesand not on medication, are recruited for a study.a) Conclusions will apply to what population?adw rol bnkbrb) Explain how you would design a completely randomized experiment. Youmay Draw an outline to assist you in your description but need to Writethe description out including the 4 components of a good experimentxplainhow you could incorporate blocking and for what purpose.

(a)In the given case, an experiment is required to be conducted to know whether the High A1C Levels (a test for diabetes) can be reduced by either a low-fat diet or a medication. There is a sample of 100 adults are selected with high MC levels, not on a special diet and not on medication. As the experiment is derived to know about the people who are suffering from High A1C Levels (a test for diabetes). The conclusion can be derived for all the people who are suffering from High A1C Levels. (b) In the randomized block design experiment, we can divide the participants of the study into subgroups. These subgroups are known as blocks. After the generalization of these subgroups, respondents of these blocks can be randomly assigned to treatment conditions. To design the given experiment, we will use the randomized block design experiment because the independent variable gender can affect the results and this variable is not included in the study also. Hence, to remove the effects of the variable gender, we should use the randomized block design experiment. Now, we should include all the four components of an experiment, thee component are: Control Random assignment Random selection Manipulation Suppose we have 50 females, 50 males, for the study. First of all, these 100 participants should be selected randomly for the experiment, i.e., random selection should be included. Now we will randomly divide the participants into subgroups according to their gender.The participants will now be divided into two groups: males and females. Half of the females, or 50 females, should be randomly assigned to the metformin treatments, while the rest 50 females should be randomly assigned to the placebo treatment, similar to the metformin with no effects. Also, among the 50 females who received the metformin, we will provide a special diet to 25 females with the treatment metformin so that we can identify whether the metformin is more effective with a special diet or not. The same process we will apply to the 25 males also who received the metformin treatment.Also, half of the males, i.e., 50 males, should be randomly assigned to the metformin, and the other 50 males should be randomly assigned to the placebo treatment.The group of patients who are assigned with the placebo treatment which looks similar to the metformin is a control group because this group does not contain the use of metformin. Now, half of the females (25 females) who received the metformin will be given a special diet. This is called manipulation as the researcher manipulated the effect of independent variable metformin. Similarly, half of the males (25 males) who received the metformin will be given a special diet. Now, by doing the comparison of the results of all four groups, the researcher can determine whether the metformin is more effective with a special diet and without a special diet.