The Abecedarian Project is a randomized controlled study to

The Abecedarian Project is a randomized controlled study to assess the effects of intensive early childhood education on children who were at high risk based on several sociodemographic indicators. The project randomly assigned some children to a treatment group that was provided with early educational activities before kindergarten, and the remainder to a control group. A recent follow-up study interviewed subjects at age 30 and evaluated educational, economic, and socioemotional outcomes to learn if the positive effects of the program continued into adulthood. The follow-up study included 52 individuals from the treatment group and 49 from the control group. Out of these, 39 from the treatment group and 26 from the control group were considered “consistently” employed (working 30+ hours per week in at least 18 of the 24 months prior to the interview).

Let e represent the sample proportion from the intervention group who received intensive early childhood education.

The sample proportions are e = __Answer 1__ and pˆc = __Answer 2__. (Round your answers to 2 decimal places.)

The pooled sample proportion is pˆ = __Answer 3__. (Round your answer to 4 decimal places.)

The test statistic is z = __Answer 4__. (Round your answer to 2 decimal places.)

The p-value is P =__Answer 5__. (Round your answer to 4 decimal places.)

Answer 1
Answer 2
Answer 3
Answer 4
Answer 5

Solution

Answer 1=39/52=0.75

Answer 2 =26/49=0.53

Answer 3=(39+26)/(49+52)=65/101=0.64

for the answer of 4 and 5 more informaiton need.