2. Based on surveys of random samples from people in a town, the proportion of
people interested in a new chain restaurant opening in their town is 0.42 with a
standard deviation of 0.07. Which of these intervals is the smallest that likely contains
95% of the sample proportions?
A. 0.21 to 0.63
B. 0.28 to 0.56
C. 0.35 to 0.49
D. 0.41 to 0.43