Y Limited is conferring with a client to do a telephone survey with interviewers on use of white shirt in office. The Client will subcontract the calls to a field services firm for Rupee 10 per usable response and Rupee 1 per call. It takes 10 calls to get 3 usable responses. The researchers client wants to be 97.5% confident of the results. Assume sample proportions formula is appropriate, and that the level of tolerable sample error is 4%. The budget for the data collection only offered by the client can be up to Rupees 9500 cannot be over this amount.

A. How many usable responses are needed based on the information provided above?

B. How much will the subcontractor charge the market researcher for sampling? Is the budget enough for data collection?

C. What would you advise your clients to use as the confidence level and sample size based on the budget given above?