Module 7 Homework Assignment

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  Use the traditional method of hypothesis testing to test the given claim about the means of two populations. Assume that two dependent samples have been randomly selected from normally distributed populations. 

Five students took a math test before and after tutoring. Their scores were as follows.

  

Student


A


B


C


D


E

 

Before 


71 


66 


67 


77 


75

 

After


75 


75 


65 


80 


87

Using a 0.01 level of significance, test the claim that the tutoring has a positive effect on the math scores.

1. State the null and alternative hypotheses.

  

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2. Find d, , and sd,. Note: It doesn’t make any difference which row you subtract

  

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3. Find the value of the test statistic, t.

  

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4. Only Find the critical value(s) and state the decision about the null hypothesis using the test statistic and the critical value

  

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5. State the conclusion in non-technical terms.

 

  

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    • 6 years ago
    Module 7 Homework Assignment
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