**Question:**What is the P(t < -0.3) with a sample size of 13?**Explanation:**This query is asking about the probability $ P(t < -0.3) $ in the context of a t-distribution. The degrees of freedom (df) can be calculated as the sample size minus one, which in this case is $ 13 - 1 = 12 $ df. To find this probability, you would typically use a t-distribution table or statistical software, looking up the value for a t-score of $-0.3$ with 12 degrees of freedom.

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What is the P (t < -0.3) with a sample size of 13.

A First Course in Probability (10th Edition)

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Step 1

The sample size is, $n = 13$

The degree of freedom is,

$d f = n - 1 = 13 - 1 = 12$

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