Provide in the plain text R commands that finds/solves the following, and show the solutions from RStudio, generated using Markdown is preferred:

A study investigates the distribution of annual income for heads of households living in public housing in Chicago. For a random sample of size 30, the annual incomes (in thousands of dollars) are in the Chicago data file.

Based on a descriptive graphic, describe the shape of the sample data distribution. Find and interpret point estimates of the population mean and standard deviation.

Construct a 95% confidence interval for ?, using R software.

CoursHeroTranscribedText

1234567820 household income 18.3 19.0 17.7 24.0 18.3 16.4 17.8 19.2 9 17.3 20.2 11 19.6 12 16.0 13 24.5 14 20.6 15 21.8 16 17.0 17 29.9 2222222222222 18 15.6 19 19.4 20 25.4 21 21.1 27.3 23 21.0 24 17.0 25 19.2 26 24.0 27 22.4 28 15.9 29 26.2 30 17.9