Question

Turbo-Brush is a new, high-speed electric toothbrush designed to remove persistent plaque. The marketing research department has just completed a primary research study with 400 respondents and obtained the following data measuring purchase intent for the new product:

                                          X            f

Definitely would buy 5           85               

Probably would buy      4 100

Might or might not buy    3 140  

Probably would not buy   2    50

Definitely would not buy 1 25

1. Determine the mean level of purchase intent. Describe the mean with both numerical and verbal cues.

2. Determine the standard deviation. Explain what this number means. Given its size, is that good or bad? Explain.
3. What would you recommend to the marketing manager based on these two key figures?

Answer 1