Question

Asked Nov 25, 2019

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Listed below are brain volumes of twins. Test that a 1% significant level that there is a difference between volumes for the first born and the second born twins.

look at the image for data!

Step 1

The hypotheses are given below:

Step 2

Step-by-step procedure to obtain the test statistic using MINITAB software:

- Choose
**Stat > Basic Statistics > Paired**.Choose*t***Summarized data**. - In
**First****Sample**, enter the column of**First Born**. - In
**First****Sample**, enter the column of In**First****Sample**, enter the column of. - Choose
**Options**. - In
**Confidence level**, enter**99**. - In
**Alternative**, select**Not equal**. - Click
**OK**in all the dialogue boxes.

Output obtained using MINITAB software is given below:

Step 3

From the output, the test statistic is **–0.47** and the p-value is **0.647**.

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