Final answer:
The question does not provide enough information to decide whether CoSport should put the new jerseys into production; factors such as the cost of production, market trends, target market acceptance level, and the company's business strategy would be needed to make an informed decision.
Step-by-step explanation:
Whether CoSport should put the new jerseys into production cannot be decisively answered with the information provided. An average rating of 6.5 suggests that the reception is relatively positive, assuming that the scale is from 1 to 10. However, the decision to proceed with production might depend on additional factors such as the cost of production, anticipated sales volume, market trends, or comparison with competitors' jersey ratings.
The provided sample standard deviation of 0.4 indicates that the ratings were relatively consistent among the surveyed group. Yet the statement "Yes, because the standard deviation is low" is not sufficient on its own to assess the viability of the product without additional context on the scale used and the target rating that CoSport deems as a 'success.' A low standard deviation could be beneficial if the average rating is above a certain threshold that CoSport considers as an indicator of a likely successful product.
The sample size of 400 fans is typically considered adequate for such surveys and should not in itself be a reason to reject the production of new jerseys, as the keyword 'sample size' would suggest.
Option D, "Not enough information to decide," is the most accurate choice since critical information essential to making a production decision is missing, such as the target market acceptance level, financial analysis, and business strategy of CoSport.