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What is the null and alternative hypothesis

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Reference no: EM13247063

A psychologist is examining the educational advantages of a preschool program and suspects that there will be significant differences in achievement based on preschool attendance. Twenty-four randomly selected 4th grade children are used in the study. Half attend a preschool program and half do not. Each child's achievement score is given below.

Make sure to use the appropriate t-test for this analysis.Preschool:8,6,8,9,7,9,6,9,8,9,7,8No Preschool: 6,5,7,6,8,5,7,5,6,7,5,6

a. What is the null and alternative hypothesis (in symbols) for this t-test?

b. Use the appropriate t-test statistic?

Is the t-test significant?c.State you conclusion

Reference no: EM13247063

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