diff --git a/packages/angular/cli/models/analytics.ts b/packages/angular/cli/models/analytics.ts
index 42674a769ca0..dec1a0567f82 100644
--- a/packages/angular/cli/models/analytics.ts
+++ b/packages/angular/cli/models/analytics.ts
@@ -14,6 +14,7 @@ import * as os from 'os';
 import * as ua from 'universal-analytics';
 import { v4 as uuidV4 } from 'uuid';
 import { getWorkspace, getWorkspaceRaw } from '../utilities/config';
+import { isTTY } from '../utilities/tty';
 
 const analyticsDebug = debug('ng:analytics');  // Generate analytics, including settings and users.
 const analyticsLogDebug = debug('ng:analytics:log');  // Actual logs of events.
@@ -359,7 +360,7 @@ export function setAnalyticsConfig(level: 'global' | 'local', value: string | bo
  */
 export async function promptGlobalAnalytics(force = false) {
   analyticsDebug('prompting global analytics.');
-  if (force || (process.stdout.isTTY && process.stdin.isTTY)) {
+  if (force || isTTY()) {
     const answers = await inquirer.prompt<{ analytics: boolean }>([
       {
         type: 'confirm',
@@ -407,7 +408,7 @@ export async function promptProjectAnalytics(force = false): Promise<boolean> {
     throw new Error(`Could not find a local workspace. Are you in a project?`);
   }
 
-  if (force || (process.stdout.isTTY && process.stdin.isTTY)) {
+  if (force || isTTY()) {
     const answers = await inquirer.prompt<{ analytics: boolean }>([
       {
         type: 'confirm',
@@ -448,7 +449,7 @@ export function hasGlobalAnalyticsConfiguration(): boolean {
       && globalWorkspace.getCli()
       && globalWorkspace.getCli()['analytics'];
 
-    if (analyticsConfig !== undefined) {
+    if (analyticsConfig !== null && analyticsConfig !== undefined) {
       return true;
     }
   } catch {}
diff --git a/packages/angular/cli/models/schematic-command.ts b/packages/angular/cli/models/schematic-command.ts
index 7b99766c6b05..7cbc13e807c3 100644
--- a/packages/angular/cli/models/schematic-command.ts
+++ b/packages/angular/cli/models/schematic-command.ts
@@ -37,6 +37,7 @@ import {
 } from '../utilities/config';
 import { parseJsonSchemaToOptions } from '../utilities/json-schema';
 import { getPackageManager } from '../utilities/package-manager';
+import { isTTY } from '../utilities/tty';
 import { isPackageNameSafeForAnalytics } from './analytics';
 import { BaseCommandOptions, Command } from './command';
 import { Arguments, CommandContext, CommandDescription, Option } from './interface';
@@ -299,7 +300,7 @@ export abstract class SchematicCommand<
       return undefined;
     });
 
-    if (options.interactive !== false && process.stdout.isTTY) {
+    if (options.interactive !== false && isTTY()) {
       workflow.registry.usePromptProvider((definitions: Array<schema.PromptDefinition>) => {
         const questions: inquirer.Questions = definitions.map(definition => {
           const question: inquirer.Question = {
diff --git a/packages/angular/cli/utilities/tty.ts b/packages/angular/cli/utilities/tty.ts
new file mode 100644
index 000000000000..1b168be93dab
--- /dev/null
+++ b/packages/angular/cli/utilities/tty.ts
@@ -0,0 +1,15 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+export function isTTY(): boolean {
+  const force = process.env['NG_FORCE_TTY'];
+  if (force !== undefined) {
+    return !(force === '0' || force.toUpperCase() === 'FALSE');
+  }
+
+  return !!process.stdout.isTTY && !!process.stdin.isTTY;
+}
diff --git a/tests/legacy-cli/e2e/tests/misc/ask-analytics.ts b/tests/legacy-cli/e2e/tests/misc/ask-analytics.ts
new file mode 100644
index 000000000000..1bd61b7b1138
--- /dev/null
+++ b/tests/legacy-cli/e2e/tests/misc/ask-analytics.ts
@@ -0,0 +1,34 @@
+import { createDir, rimraf } from '../../utils/fs';
+import {
+  execWithEnv,
+  killAllProcesses,
+  waitForAnyProcessOutputToMatch,
+} from '../../utils/process';
+
+const packages = require('../../../../../lib/packages').packages;
+
+export default async function() {
+  // Create a temporary directory to install the CLI
+  await createDir('../ask-analytics');
+  const cwd = process.cwd();
+  process.chdir('../ask-analytics');
+
+  try {
+    // Install the CLI with TTY force enabled
+    const execution = execWithEnv(
+      'npm',
+      ['install', packages['@angular/cli'].tar],
+      { ...process.env, 'NG_FORCE_TTY': '1' },
+    );
+
+    // Check if the prompt is shown
+    await waitForAnyProcessOutputToMatch(/Would you like to share anonymous usage data/);
+
+  } finally {
+    killAllProcesses();
+
+    // Cleanup
+    process.chdir(cwd);
+    await rimraf('../ask-analytics');
+  }
+}