a study estimate the mean annual people income for people living in public housing in California. for a random sample of 30 ppl the annual incomes are: 839077100836478927312296608586108701395694841119312070921001245911279.a. construct a stem and leaf plot of the income. what do you predict about the shape of the population distribution.b. complete the following sentence. Fifty percent of the data falls below $ ______.c. Find the point estimate for the population mean and standard deviation.d. construct and interpret a 95% confidence interval for.