Let X, = 1 if worker i is a union member and X, = 0 if not. Let Y, be their wages. In this problem, you'll use the nlswork dataset to plot the conditional distribution of the data, by union status. Your easiest path will be to do this problem using R, and adjusting the code from the lecture notes. To use R, you'll need to download and install it (if you do, I recommend also installing RStudio for a nicer interface), or you can sign up for a free account at www.rstudio.cloud. Note: There are some observations for which the union variable is missing. You may wish to drop these. a) Plot the function Fy:X-(y) for each of z=0 and z=1. Same graph is fine, or two separate graphs. b) Use the geom density() (or an equivalent if using different statistical software) command to plot Jyx(y) for both values of z. c) Report the values of EY|X, =1] and BY.X=0]. Please submit a copy of your code along with your answers (its OK if you have identical code to those that you worked with).

Let X, = 1 if worker i is a union member and X, = 0 if not. Let Y, be their wages. In this problem, you'll use the nlswork dataset to plot the conditional distribution of the data, by union status. Your easiest path will be to do this problem using R, and adjusting the code from the lecture notes. To use R, you'll need to download and install it (if you do, I recommend also installing RStudio for a nicer interface), or you can sign up for a free account at www.rstudio.cloud. Note: There are some observations for which the union variable is missing. You may wish to drop these. a) Plot the function Fy:X-(y) for each of z=0 and z=1. Same graph is fine, or two separate graphs. b) Use the geom density() (or an equivalent if using different statistical software) command to plot Jyx(y) for both values of z. c) Report the values of EY|X, =1] and BY.X=0]. Please submit a copy of your code along with your answers (its OK if you have identical code to those that you worked with).

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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