1. Find the 95% confidence interval for the mean number of hours of TV watched each day by adults in the US. Report the upper and lower bounds of the interval:

lower bound ____________________

upper bound ____________________

Significance test for a mean with review of confidence interval for a mean

Statistical analysis applications

You can use the Art of Stats applications at https://artofstat.com/web-apps

• Describing and exploring quantitative data https://istats.shinyapps.io/EDA_quantitative/
• Inference for a mean https://istats.shinyapps.io/Inference_mean/
• The t distribution https://istats.shinyapps.io/tdist/

Information for homework 4:

Use the data from the 2018 General Social Survey. The raw data are in the filegss_2018_tvhours.txt; a frequency distribution of the variable is in the filegss_2018_tvhours.xls; and the data are available in the Art of Stat app Inference for a Population mean as Data From Textbook, and the Dataset TV Hours. The data are a random sample from the adult population in the US.

Variable

Hours watching TV each day TVHOURS

TV hours Frequency 145 349 376 240 169 ODO NO UI A W N H O LOO 63 13 38 6 23 12 14 15 16 AHHWAND 17 18 20 24 Total 1555