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Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).
<h3>What is a t-distribution confidence interval?</h3>
The confidence interval is:

In which:
is the sample mean.
- s is the standard deviation for the sample.
The critical value, using a t-distribution calculator, for a two-tailed <em>95% confidence interval</em>, with 49 - 1 = <em>48 df</em>, is t = 2.0106.
Hence:


The 95% confidence interval for the number of units students in their college are enrolled in is (11.7, 12.7).
More can be learned about the t-distribution at brainly.com/question/16162795
The statement that uses an action verb to highlight an aptitude is: Developed innovative and interactive websites that increased traffic by 150 percent
<h3>What is an Action Verb?</h3>
This refers to the type of verb that is used in a sentence to describe an action.
Hence, we can see that from the complete question, there are different statements that contain action verbs, but the one that highlights an aptitude is the statement: "Developed innovative and interactive websites that increased traffic by 150 percent"
Read more about action verbs here:
brainly.com/question/14584990
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