# Ciency:1. The score on the chapter 8 test is compared with a student's chapter 2 test score. Theclaim that there is no difference in the test scores is to be tested.a)Find thet test statisticChapter 84042504546Chapter 235404245d.010b) Find the margin of error.c) Find the 95% confidence interval estimate of the mean difference .For a 90% confidence interval between the difference of 2 independent proportions (home runs per

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Asked Dec 5, 2019
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## Expert Answer

Step 1

(a)

Step by step procedure to obtain the test statistic using MINITAB software is given below:

• Choose Stat > Basic Statistics > 1-Sample t.
• In One or more samples, each in a column, select Difference.
• Check Options, enter Confidence level as 95.
• In Perform Hypothesis test, enter 0 Under Hypothesized mean.
• Choose Mean ≠ Hypothesized mean in alternative.
• Click OK in all dialogue boxes.

Output using the MINITAB software is given below:

Step 2

From the MINITAB output, the value of test statistic is 2.33.

(b)

The degrees of freedom is obtained as follows:

Step 3

The critical value is obtai...

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