Question

Suppose you work for Coca Cola (Links to an external site.) and are assigned to test new sodas they are developing: Lemon Libation and Grapefruit Guzzle. Specifically, you want to find out if adults aged 18 -34 prefer one over the other.  

You have fifty volunteers at your laboratory who can stay for one hour to taste the sodas and give you their feedback on preference.

Describe how you will use the volunteers and get their feedback on which is the better soda. Please address the following four points in your description:

• will blocking be incorporated and, if so, why?
• will you need to use some kind of randomization? How? Why?
• will everyone taste Lemon Libation first?
• how will you interpret the data you gather?

Answer 1

Given we have volunteers for taste the codes so Pin this we avigned a mutually excluive grops to tast new sodas Group 1 + Experimental group Giraup 2: placebo group of experimetal group will be given lemon libalion * placebo group will be given grapefruit Guzzle 1. There a group volunteers u alloted to take the new sodoe and give their feedback on por- eference. 1. The whole experimentation will be double blind since the entire proces & allocation will be done by an independent statistician, So, in this both the volunteers will don't ! know which participant will go to which group Also, both new sodas they are developing One he lemon dibation Ee another one u grape fruit Guzzle They will be made to look identical so that the volunteer will don't kno know which type od Sode he le consuming no know

will blocking be incorporated and, if so, why day Blocking for gender is in corporated by allocating equal number of male and female in each group 27 will you need to we some kind of randomizato - tion? A It ie wed be Random number. Random number - Generator to allocate volunteers to either of - the groups to control any confounding variabi 3) Colli everyone toute lemon libation fiset 2 ay No, only group I participaents will taste lemon libation Group & participants will tarte Grapefruit Guzzle. 4) How will you intorept the data you gather? Ang At the end of the experimentation, all the volanteon in both groups will give their taste in Scale & o to to. Statistical Tests can be condu- cled as to delermine which valuc u more.