Please help with parts a-c.

Stratum Population Sample Number Employee Type Size (My!) Size {at} 1 Faculty 13M Stilt} 2 Classied staff 1960 53 3 Administrative staff 252 93 4 Academic professional 95 95 Questionnaires were sent through campus mail to persons in strata 1 through 4; the sample size in the above table is the number of questionnaires mailed in each stratum. 1We'll come back to the issue of nonresponse in this survey in Chapter 8; for now, just analyze the respondents in die stratied sample of employees irt closed units; the data are in the le \"wintendat.\" For dtis exercise, look at the answers to the question \"Would you want to have Winter Break Closure again?" I{variable breakage). Not all persons in die survey responded to the question. Findthe number of persons that responded to the question in each of the four strata. For d'ti s exercise, use these values as die 11].. Use [3.6] and {33} to estimate the proportion of faculty and staff that would answer yes to the question 'Would you want to have 1Winter Break Closure again" and give the standard error. Create a new variable. in which persons who respond \"yes" to the queson take on Use value 1, persons who respond \"no" to the question take on the value . and persons who do not respond are eid'ter left blank (if you are using a spreadsheet} or assigned the missing value code {if you are using statistical software]. Construct a column of sampling weights Nhfm. for die observations in the sample. {The sampling weight will be t} or missing for nonrespondents.) Now use (3.10} to estimate the proportion of faculty and staff that would answer yes to the question \"Would you want to have Winter Break Closure again?" \f