An educational researcher believed that a peer tutoring program might make a difference in teaching developmentally delayed children how to read.He performed anexperiment wherethe children were randomly divided into two groups: the experimental group received regular instruction plus peer tutoring, and the control group received regular instruction with no peer tutoring.A reading test was given to both groups after 6 weeks of instruction.The data scores for the test are reported in the following table.Answer the following questions based on this data:

Experimental Group

(peer tutoring)

Control Group

(no peer tutoring)

M1= 86.00

M2= 83.00

s12= 25.00

s22= 16.00

n1= 10

n2= 14

a) In words state the null and alternative hypotheses forthis study. Be specific.(2pts)

b) Calculate the correct t-test. What is the value of this t-test? (3 pts)

c) What are the df?What are the tcritical? Assume? = .01. (1 pt)

d) What is the conclusion?Write up the results, using APA (even if not significant), including whether wereject or fail to rejectthe null hypothesis andwhether there is a differencein the mean reading score as a function of peer tutoring.(2 pts)

e)Calculate the95%confidence interval for the population mean difference in reading score as a function of peer tutoring. Hint - make sure you have the right alpha!(3 pts)

An educational researcher believed that a peer tutoring program might make a difference in teaching developmentally delayed children how to read. He performed an experiment where the children were randomly divided into two groups: the experimental group received regular instruction plus peer tutoring, and the control group received regular instruction with no peer tutoring. A reading test was given to both groups after 6 weeks of instruction. The data scores for the test are reported in the following table. Answer the following questions based on this data: Experimental Group Control Group (peer tutoring) (no peer tutoring) M1 = 86.00 M2 = 83.00 s.2 = 25.00 522 = 16.00 111 = 10 r12 = 14 a) In words state the null and alternative hypotheses for this study. Be specic. (2 pts) b) Calculate the correct t-test. What is the value of this t-test? (3 pts) c) What are the df? What are the tcritical? Assume a = .01. (1 pt) d) What is the conclusion? Write up the results, using APA format (even if not signicant), including whether we reject or fail to reject the null hypothesis and whether there is a difference in the mean reading score as a function of peer tutoring. (2 pts) e) Calculate the 95% condence interval for the population mean difference in reading score as a function of peer tutoring. Hint - make sure you have the right alpha! (3 pts)