Final answer:
Market research often highlights the positive correlation between customer service and increased spending; however, without exact figures from a specific study, we cannot provide a definitive percentage of customers likely to spend more.
Step-by-step explanation:
According to market research, the percentage of customers likely to spend more if the sales associate is helpful is believed to be quite high, although the exact figures can vary based on the source of the research. Customer service has a significant impact on purchasing decisions. The impact of a helpful sales associate can be quantified through rigorous market research and surveys, which collect data on consumer behavior and preferences.
Generally, studies find that better customer service correlates with increased spending. For example, using the principles of population proportions if a survey finds that a high number of women make the majority of household purchases, a related follow-up might inquire whether a helpful sales associate affected their spending level.
Without a specific market research study provided for this question, it is challenging to offer a definitive percentage. However, it is widely recognized in marketing and business studies that a significant portion of customers would indeed spend more when assisted by helpful sales staff.