Question

) Focus groups of 11 people are randomly selected to discuss products of the Yummy Company. It is determined that the mean number (per group) who recognize the Yummy brand name is 7.8, and the standard deviation is 0.97. Would it be unusual to randomly select 11 people and find that fewer than 4 recognize the Yummy brand name?

Answer 1

According to the information, it would be unusual to find fewer than 4 recognize the brand

Step-by-step explanation:

The standard deviation is the most common measure of dispersion, which indicates how scattered the data is with respect to the mean. The greater the standard deviation, the greater the dispersion of the data.

In this case we have a mean of 7.8 people who recognize the Yummy Brand and a standard deviation of 0.97, which means that the results of the groups are between 7.8
`(+)/(-)` 0.97 (i.e. 6.8 and 8.8) so a value below 4 would be unusual to appear.