Confidence Interval for Mean with Paired Samples | Dependent Samples (2020)

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This video will help you find the confidence interval for a mean with paired samples. This is called a dependent sample. The confidence interval will be found by pairing the samples in the TI-84 calculator. This process is different from a confidence interval for independent samples. There is one example with lecture about the process.
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Prof. Sampson,

Hello could you please explain why we use n=16, df=15 not n=8 (pairs) df=7 in this problem? I’m a little confused because Hawkes shows n=number of pair
Thank you!

Yuko

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