51. Based on responses of 1467 subjects in General Social Surveys in the mid-1980s, a 95% confidence interval for the mean number of close friends equals (6.8.80). Which of the following interpretations is (are) correct?

a) We can be 95% confident that Y is between 68 and 8.0

b) We can be 95% confident that is between 6.8 and 8.0.

c) Ninety-five percent of the values of = number of close friends (for this sample) are between 6.8 and 8.0

d) If random samples of size 1467 were repeatedly selected, then 95% of the time I would be between 6.8 and 8.0.

e) If random samples of size 1467 were repeatedly selected, then in the long run 95% of the confidence intervals formed would contain the true value of p.