diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index aaffb1f..8f421b9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,4 +19,4 @@ jobs:
         java-version: 1.11
 
     - name: Build with Maven
-      run: mvn -B package
+      run: mvn -B package -Pcoverage
diff --git a/README.md b/README.md
index 038588a..1de088b 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,10 @@ Copyright (C) 2015, 2017-2020 Vincent A. Cicirello.
 
 https://www.cicirello.org/
 
+| __Packages and Releases__ | [![Maven Central](https://img.shields.io/maven-central/v/org.cicirello/ziggurat.svg?label=Maven%20Central)](https://search.maven.org/artifact/org.cicirello/ziggurat) [![GitHub release (latest by date)](https://img.shields.io/github/v/release/cicirello/ZigguratGaussian?logo=GitHub)](https://github.com/cicirello/ZigguratGaussian/releases) |
+| :--- | :--- |
+| __Source and Build Info__ | [![build](https://github.com/cicirello/ZigguratGaussian/workflows/build/badge.svg)](https://github.com/cicirello/ZigguratGaussian/actions?query=workflow%3Abuild) [![GitHub](https://img.shields.io/github/license/cicirello/ZigguratGaussian)](https://github.com/cicirello/ZigguratGaussian/blob/master/LICENSE) |
+
 ## Overview
 
 This repository contains a Java implementation of the Ziggurat 
@@ -45,6 +49,42 @@ additional experimental data:
 If you want to build from the source, then execute `mvn package` at the root
 of the repository.
 
+## Importing the Library from Maven Central
+
+Add this to the dependencies section of your pom.xml, replacing 
+the version number with the version that you want to use.
+
+```XML
+<dependency>
+  <groupId>org.cicirello</groupId>
+  <artifactId>ziggurat</artifactId>
+  <version>1.0.0</version>
+</dependency>
+```
+
+## Importing the Library from GitHub Packages
+
+If you'd prefer to import from GitHub Packages, rather than 
+Maven Central: (1) add the dependency as indicated in 
+previous section above, and (2) add 
+the following to the repositories section of your pom.xml:
+
+```XML
+<repository>
+  <id>github</id>
+  <name>GitHub cicirello Apache Maven Packages</name>
+  <url>https://maven.pkg.github.com/cicirello/ZigguratGaussian</url>
+  <releases><enabled>true</enabled></releases>
+  <snapshots><enabled>true</enabled></snapshots>
+</repository>
+```
+
+## Downloading Jar Files
+
+If you don't use a dependency manager that supports importing from Maven Central,
+or if you simply prefer to download manually, prebuilt jars are also attached to 
+each [GitHub Release](https://github.com/cicirello/ZigguratGaussian/releases).
+
 ## License
 
 The example programs in this repository are licensed under 
diff --git a/pom.xml b/pom.xml
index c8a91d2..661c0a1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -129,6 +129,32 @@
 				</repository>
 			</distributionManagement>
 		</profile>
+		<profile>
+			<id>coverage</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.jacoco</groupId>
+						<artifactId>jacoco-maven-plugin</artifactId>
+						<version>0.8.6</version>
+						<executions>
+							<execution>
+								<goals>
+									<goal>prepare-agent</goal>
+								</goals>
+							</execution>
+							<execution>
+								<id>generate-code-coverage-report</id>
+								<phase>test</phase>
+								<goals>
+									<goal>report</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+				</plugins>
+			</build>
+		</profile>
 	</profiles>
 
 	<issueManagement>
diff --git a/src/test/java/org/cicirello/math/rand/ZigguratGaussianTests.java b/src/test/java/org/cicirello/math/rand/ZigguratGaussianTests.java
index 85f572f..fe2ee30 100644
--- a/src/test/java/org/cicirello/math/rand/ZigguratGaussianTests.java
+++ b/src/test/java/org/cicirello/math/rand/ZigguratGaussianTests.java
@@ -35,7 +35,7 @@ public class ZigguratGaussianTests {
 	
 	// Test cases use chi square goodness of fit.  This constant 
 	// can be used to adjust the number of samples used for this test.
-	private static final int EXPECTED_SAMPLES_PER_BUCKET = 30;
+	private static final int EXPECTED_SAMPLES_PER_BUCKET = 60; 
 	
 	// Change to true to see extra statistical output not otherwise used
 	// by automated tests (e.g., to see the specific chi square statistic value).