Marketing research & sales forecasting- Definition & importance of marketing research- Steps in marketing research- Defining problem- Problem analysis- Developing research design- Developing research procedure- Data collection Primary & secondary- Analyzing & interpretation- Summarizing & preparing the research report- Method of market research- Necessity & purpose of sales forecasting- Methods of sales forecasting118.Sales management- Designing the sales forcesay, the noise voltage depends on frequency, mutual capacitance, resistanceof the receiver circuit and the input voltage. In most cases, the frequency ispre-set and thus we dont have much control over it and so is the source voltage.Thus in order to minimize the noise voltage, we have to reduce the coupling capacitanceor the resistance of the receiving (receptor) conductor. The different methodsof doing this are discussed in section ??. We can now represent the capacitive couplingwith a current source connected to conductor 2 with source current given byI = ??C12V1. Figure 2.4 shows the schematic diagram.In the high frequency region, the noise voltage can be approximated byVN C12C12 + C2gV1 (2.8)By examining equation 2.8, we realise that at highMarketing research & sales forecasting- Definition & importance of marketing research- Steps in marketing research- Defining problem- Problem analysis- Developing research design- Developing research procedure- Data