For Exercises 8.1 and 8.2, see page 419; for 8.3 and 8.4, see page 421; for 8.5 to 8.7, see page 423; for 8.8 to 8.11, see pages 425–426; for 8.12, see page 426; for 8.13 and 8.14, see page 429; and for 8.15 and 8.16, see page 431.

Question 8.1

8.1 Community banks.

The American Bankers Association Community Bank Insurance Survey for 2013 had responses from 151 banks. Of these, 80 were Community Banks, defined to be banks with assets of $1 billion or less.3

  1. What is the sample size for this survey?
  2. What is the count ? Describe the count in a short sentence.
  3. Find the sample proportion .

8.1

(a) . (b) , it is the count of banks with assets of $1 billion or less. (c) .