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:

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 format (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)

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