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control of variance second basic purpose of research design is the control of variance research design help in manipulation of experimental
purpose of research designany research design has two basic purposesa to provide answers to research questions as validly objectively
requirements for a good research designa nature and scope of the problem to be studied must be stated clearly or say must be
types of research designthe marketing research designs are classified on the basis of the fundamental objectives of the research they may be
exploratory researchexploratory research studies are also termed as for mutative research the main purpose of such studies is that of formulating a
methods for collecting informationliterature research study of secondary data the quickest and most economical way is to find possible
survey of knowledgeable persons or experience survey experience survey means the survey of people who have had practical experience with the
problem on abc analysis of inventorythe abc analysis of inventory divides inventory into three classesclass a - high annual dollar volumeclass b -
a paper mill produces two grades of paper viz x and y because of raw material restrictions it cannot produce more than 400 tons of grade x
case studythe third general type of exploratory research is the case methods this research method has long been considered soft or non-scientific but
distinctive features of case studyaincrease of knowledge like the historical method the traditional case study method also serves a dual purpose
specific steps in the case study approacha determining present status the first step is to gather descriptive information which will determine as
advantages of case studya being an exhaustive study of a social unit the case study method enables us to understand fully the behaviour pattern of
a paper mill produces two grades of paper viz x and y because of raw material restrictions it cannot produce more than 400 tons of grade x paper and
determine the sample size needed to cut the margin of errorbelow you are given ages that were obtained by taking a random sample of 9 undergraduate
conclusive researchconclusive research provides information which helps the executive to make a ration decision the marketing executive has to arrive
descriptive researchdescriptive studies as their name implies are designed to describe something for example the characteristics of users of a given
types of descriptive studiesto facilitate the discussion on the design of descriptive studies two types or method of study are considered separately
mr vincent the manager of a large supermarket was taking a management course in theevening programme at the local college the professor had given an
advantages of statistical methodsainvolve relatively large number of observationsbanalysis is more objectivec averages and percentages are
solve the following linear programming problem using simple method maximize z 3x1 2x2 subject to the constraints x1 x2 4 x1 x2
descriptive research analysis it can be divided into two classesa panel analysis longitudinal studybcross sectional analysis study a longitudinal
advantages of panel dataa such data enable the researcher to undertake detailed analysis for example one can determine the characteristics of
limitations of panel dataa panel data may not be representative samples since panel members are expected to put in some effort in