Abox of national brand cornflakes is $2.09 for 12 ounces. a box of store label cornflakes is $3.09 for 20 ounces. if you have a 15% off coupon for the national brand, which is the better buy?

It will be better to buy the national brand cornflakes as it is less costlier.

Step-by-step explanation:

A box of national brand cornflakes is $2.09 for 12 ounces.

So, per ounce cornflakes of national brand costs dollars.

Now, if I have a 15% off coupon for the national brand, then the per-ounce cost for national brand cornflakes will be dollars.

It is given that a box of store label cornflakes is $3.09 for 20 ounces.

Then the per-ounce cost for store label cornflakes will be dollars.

Therefore, it will be better to buy the national brand cornflakes as it is less costly. (Answer)

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.