void page5() {
  background(255);

  String t = "Step 4 - The p-value (continued)";
  textFont(myboldfont, 18);
  text(t, 30, 40);
  textFont(myfont, 18);

  if (aStudy.k==0) {
    t = "Since the alternative is left-tailed, we use the formula: ";
    text(t, 30, 70);

    image(p1, 80, 100);
    generateGraph(testl, 1, 0);
    image(pg, 400, 100);
    pvalue = pl;

    t = "p_ is indicated in red";
    text(t, 80, 150);

    t = "Calculate the p-value? Type in the following textbox (with at least 3 decimal places) then click Answer:";
    drawStrings(t, 30, 205,25);
    tf2.setXY(262,213);
  }
  else if (aStudy.k==1) {
    t = "Since the alternative is right-tailed, we use the formula: ";
    text(t, 30, 70);

    image(p2, 80, 100);
    generateGraph(testu, 0, 0);
    image(pg, 400, 100);

    t = "p+ is indicated in red";
    text(t, 80, 150);
    pvalue = 1-pu;

    t = "Calculate the p-value? Type in the following textbox (with at least 3 decimal places) then click Answer:";
    drawStrings(t, 30, 210,25);
    tf2.setXY(250,218);
  }  
  else {
    t = "Since the alternative is two-tailed, we use these formulas: ";
    text(t, 30, 70);

    image(p1, 80, 100);
    generateGraph(testl, 1, 0);
    image(pg, 400, 100);

    t = "p_ is indicated in red";
    text(t, 80, 150);

    image(p2, 80, 180);
    generateGraph(testu, 0, 1);
    image(pg, 400, 200);

    t = "p+ is indicated in green";
    text(t, 80, 230);

    image(p3, 80, 250);

    if (pl < 1-pu) {
      pvalue = 2*pl;
    }
    else {
      pvalue = 2*(1-pu);
    }

    t = "Calculate the p-value. Type in the following textbox (with at least 3 decimal places) then click Answer:";
    drawStrings(t, 30, 300,25);
    
    tf2.setXY(250,308);
  }

  fill(0, 0, 255);
  drawStrings(feedback, 80, 380,25);

  tf2.setVisible(true);
  tf3.setVisible(false);
  cb6.setVisible(false);
}