Early-childhood-development studies indicate that the more often a child is read to from birth, the earlier the child begins to read. A
local parents' group wants to test this theory and samples families with young children. They find the following results. Construct a
99% confidence interval to estimate the true difference between the proportions of children who read at an early age when they are
read to frequently compared to those who were read to less often, as described in the table of results. Let Population 1 be the children
who were read to frequently and Population 2 be the children who were read to less often. Round the endpoints of the interval to
three decimal places, if necessary.
Started Reading by age 4
Started Reading after age 4
Ages when Children Begin to Read
Read to at Least Three Times per week
35
47
Read to Fewer than Three Times per week
69
27