Hi, I need help with essay on Longitudinal method compared with 5 other methods in text book. Paper must be at least 1500 words. Please, no plagiarized work!

In essence, longitudinal studies usually allow tracking of people. therefore, different longitudinal surveys given people are less likely to be the true reflection of cultural or behavior different over a given period (Jin and Rounds, 2012). Longitudinal research methods allow observation of changes in a more accurate way. therefore, it can be applied in different fields particularly business field among other fields (Bryman, 2012). Notably, longitudinal studies often allow accurate observation of changes that occur during the study in numerous fields. In nursing and medicine fields, the study is often designed to reveal the predictors of certain diseases. In marketing, the same study is often applied to identify the needed changes to advertisements due to attitude and behavior changes within the targeted audience.

Longitudinal studies are classified among the observational studies. thus, it its application cannot allow the manipulation of variables of the study (Lee and Xia, 2011). In some instances, it has been noted that the longitudinal studies are less powerful to detect any causal relationship between variables than other experimental research methods (Wagner, 2010). However, due to their repeated observations at individual levels, longitudinal studies are more powerful than other cross-sectional observational studies. Additionally, longitudinal studies are capable of excluding time invariants within the unobservable individual difference, and they allow temporal observation of order of events (Morrow, 2011). Nonetheless, the longitudinal studies are every expensive since they take a longer period to be accomplished. thus, making it less convenient research method. Additionally, longitudinal studies may lack accuracy since sometimes they experience changes in variables especially in case of death of a particular data set. These underlying differences and similarities between longitudinal research studies allows to compared with

A beer distributor finds that it sells on average 100 cases a week of regular 12-oz. Budweiser. For this problem assume that demand occurs at a constant rate over a 50-week year. The distributor currently purchases beer at a cost of $8 per case. The inventory-related holding cost (capital, insurance, etc.) for the distributor equals 25 percent of the dollar value of inventory per year. Each order placed with the supplier costs the distributor $10. This cost includes labor, forms, postage, and so forth. [Note that the holding cost rate is 25% per year, you need to convert that to percentage per week.]

(a)  Assume the distributor can choose any order quantity it wishes. What order quantity minimizes the distributor’s total inventory-related costs (holding and ordering)?

(b)  What is the order cycle time?

(c)  How many orders does the distributor place every year?

(d)  What is the inventory-related cost per case of beer sold?

For part e, f and g, suppose the Brewer just opened a plant right next door to the distributor. Beers are now shipped through conveyors to the distributor cases by case as they come off the production line. Suppose the production rate is 150 cases a week (All other parameters remain unchanged from part a).

(a)  What order quantity minimizes the distributor’s total inventory-related costs?

(b)  What is the run time?

(c)  What is the order cycle time?