You are encouraged to use sources outside the course material. Please properly cite material that is incorporated into your answer using the format. If material outside the course material is included but not cited a grade of zero on the entire participation assignment will be recorded. Please refer to genAI details in the 'Additional Information section of this syllabus.

Q1 (1 point)

Type the R code used to calculate the "critical values" that correspond to a 99% confidence interval.

Q2 (1.5 points)

Replicate Example 9.8 but replace income with IQ and report only the 95% confidence interval. Then, interpret the confidence interval.

Q3 (0.5 points)

The 99% confidence interval contains the true sample mean 99% of the time.

A

True

B

False