Question: Confidence level and interval width. Refer to the previous exercise. Compute the 90% and the 95% confidence intervals. Display the three intervals graphically and write

Confidence level and interval width. Refer to the previous exercise. Compute the 90% and the 95%

confidence intervals. Display the three intervals graphically and write a short explanation of the effect of the confidence level on the width of the interval using your display as an example.

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