National School of Statistical Sciences (ENCE-IBGE) — 2026-2
- Arthur Togi
- Branca Azevedo
- Daniele Nogueira
- Davi Reis
- Guilherme Souza
- Jorge Henrique
- Marcos Vinícios
Two versions of the same survey question were created:
-
Version A (neutral):
"Do you think the university needs to carry out reforms to its facilities?"
-
Version B (biased):
"Do you think the university should carry out reforms to its facilities in order to better meet your needs?"
A small HTML page (hosted on Netlify) randomly redirected respondents to one of two Google Forms links — one per question version — so assignment to A or B was automated rather than manual. The survey ran from 08/24/2026 to 08/26/2026 and was shared with ENCE-IBGE students and alumni via WhatsApp.
<!DOCTYPE html>
2 <html>
3 <head>
4 <meta charset="utf-8"/>
5 <title>Redirecionando</title>
6 <meta id="encurtador" http-equiv="refresh" content="5; url=/"
/>
7 </head>
8 <body>
9 <h1>Trabalho de Introduc¸˜ao `a Estat´ıstica</h1>
10 <h2>Redirecionando para o FORMS</h2>
11 <script>
12 var links = [
13 Array(’https://docs.google.com/forms/d/e/1
FAIpQLSd2wiAGmTh1TdIA53nGkhIkKpfWZR4fvpKMl2QsqDH_Ht2_ZA/
viewform?usp=dialog’,’https://docs.google.com/forms/d/e/1
FAIpQLSdAjuKGauA-w98E1IFzQi_46LdCfZUriVqT3byf4R21nltXSw/
viewform?usp=dialog’)
14 document
15 .getElementById("encurtador")
16 setAttribute("content", "5; URL=" + links[Math.floor(
Math.random()*links.length)]);
17 </script>
18 </body>
19 </html>
C ´odigo 1. Linguagem HTML
Note: Introdution to Statics College project
Redirecting to forms
https://est001-grupo1-ence-forms.netlify.app/
A-
https://docs.google.com/forms/d/1iikgQfoIA8jqb4ZUckGwXfvkhPw6WONmvWsiw-YUDrk/edit
B-
https://docs.google.com/forms/d/1Xhnd19gcNV09Mk_whY00hsIwe-lXGpjFEwroKGZ-BaQ/edit
We mentioned the student's individual needs regarding accommodations, rather than simply generalizing the need for accommodations.
.
├── Project.pdf # Main LaTeX source (English version)
├── Code_lattex.tex # Main LaTeX source code (English version)
├── ence_LOGO.jpg # ENCE-IBGE logo — used in the page header
├── Graph_A.png # Chart of responses to Version A
├── Graph_B.png # Chart of responses to Version B
└── README.md # This file
⚠️ Note: the three image files are not included by default. Add your ownence_LOGO.jpg,Grafico_A.png, andGrafico_B.pngto the same folder as the.texfile, or compilation will fail at the\includegraphicscommands.
| File | Where it appears | Purpose |
|---|---|---|
ence_LOGO.jpg |
Page header (top-left, every page after the table of contents) | Institutional logo of ENCE-IBGE |
Grafico_A.png |
"Charts" section | Response distribution for the neutral question (Version A) |
Grafico_B.png |
"Charts" section | Response distribution for the biased question (Version B) |
The report defines two formulas in LaTeX math mode. In plain-text form:
Sample proportion of "yes" answers, per version:
p̂_A = n_A(yes) / n_A p̂_B = n_B(yes) / n_B
Difference in proportions between versions:
d = p̂_A − p̂_B
These only use base LaTeX math mode (\hat{}, \frac{}{}) — no extra math package is required.
| Metric | Version A | Version B |
|---|---|---|
| Answered yes | 19 | 21 |
| Total approached | 25 | 26 |
| Proportion of yes | 0.76 | 0.80 |
| Difference (A − B) | — | −0.04 |
Note: Yes - Sim / No - Não
Mentioning needs creates certainty. 💡
This repository contains a LaTeX report for an introductory statistics assignment and your code. The project ran a small online survey experiment to measure how question wording (neutral vs. biased phrasing) affects response rates, using an automated randomized redirect built with a static HTML page.
Academic assignment — for coursework use.