In R, please provide the code for the following:Install the EnvStats package and load the library.Use help(varTest) to open the information about the function varTest and read thedocumentation and notes about using this functionUsing the precip data set, create a sample of size 20.Use this sample to test if the standard deviation is greater than 15 square miles. Clearlystate your hypotheses, rejection rule, and conclusion in your report. Use alpha = 0.05.Compute the population variance of the precip data set (note that the var() functiongives the sample variance so you will have to scale it to obtain the population variance). Given this information, what do you think about your test results? Explain any discrepancies or issues that you see.

This code uses the R programming language to perform a hypothesis test on a sample of data from the…

Answered: In R, please provide the code for the…

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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In R, please provide the code for the following:

Install the EnvStats package and load the library.
Use help(varTest) to open the information about the function varTest and read the

documentation and notes about using this function
Using the precip data set, create a sample of size 20.
Use this sample to test if the standard deviation is greater than 15 square miles. Clearly

state your hypotheses, rejection rule, and conclusion in your report. Use alpha = 0.05.
Compute the population variance of the precip data set (note that the var() function

gives the sample variance so you will have to scale it to obtain the population variance). Given this information, what do you think about your test results? Explain any discrepancies or issues that you see.

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