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How do you do these questions and explanations please?

How do you do these questions and explanations please?-example-1

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Explanation:

1. Standard error is SE = σ / √n. As n increases, SE decreases.

2. Degrees of freedom is d = n − 1. As n increases, d increases.

3. The t statistic is t = (x − μ) / SE. As SE decreases, t increases.

4. As n increases, t* decreases and approaches z*.

5. As the t statistic increases, the P-value decreases.

6. Margin of error is t* times SE. As n increases, MoE decreases.

7. The width of the confidence interval is 2 MoE. As MoE decreases, the width of the confidence interval decreases.

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