Question: need to verify this question so please answer and will up veto Exercise 1.1 - True or False We calculate confidence intervals for the mean

need to verify this question so please answer and will up veto

Exercise 1.1 - True or False We calculate confidence intervals for the mean because we are trying to learn about plausible values for the sample mean x

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1. Background knowledge of the subject and

4. What specific changes in the environment have taken place in relation to the information we have collected?

2. The purpose of the acquisition of the information.