4)

A research program used a representative random sample of men and women to gauge the size of the personal network of older adults. Each adult in the sample was asked to "please name the people you have frequent contact with and who are also important to you." The responses of 2,822 adults in this sample yielded statistics on network size, that is, the mean number of people named per person was x = 14.8, with a standard deviation of s = 9.9. Complete parts a through d. a. Give a point estimate for p. (Type an integer or a decimal.)