Finding z critical values using a z table

Sdílet
Vložit
  • čas přidán 22. 08. 2024
  • In this video, we find z critical values using a commonly used z table. This z table can be found along with much more for free at www.statsprofe...

Komentáře • 27

  • @Alex-dx8oe
    @Alex-dx8oe Před rokem +1

    All the examples I was finding had the book given, common percentages so they weren't very helpful to me because the answer was already given on the chart. Thanks to you, I can actually solve these problems confidently

    • @dmcguckian
      @dmcguckian  Před rokem

      It’s nice to hear the video helped!

  • @irenegangmei5796
    @irenegangmei5796 Před rokem +1

    Thankyou so much for putting up this video. It has solved my doubts.

  • @maudynyathi332
    @maudynyathi332 Před 2 lety +4

    You are a life saver, thank you for this video.

  • @tayelorszn6635
    @tayelorszn6635 Před 5 měsíci

    Thank you so much man, it was impossible to learn the levels not in my textbook,

  • @tashinewland8792
    @tashinewland8792 Před 4 lety +7

    This was useful as far as steps but I'm confused as to why my z score chart is completely different. For example your z score of 0.0 is 0.0000 my z score 0.0 is 0.5000. And my chart is two pages one positive and one negative.

    • @dmcguckian
      @dmcguckian  Před 4 lety +2

      Yes, there are several z tables in common use. Every table does one type of drawing directly. Your two tables will do two problems directly. In other words, for two drawings that might result when solving these problems your tables will give you the same area you’re looking for without any additional work. There are five different types of drawings that you can have in these problems, so you will always need to do an extra step to find the answer for some of your problems. Once you know the basics, you can adapt to any table you have. Each table has a drawing up top to tell you how it works. In the beginning, stick with the tables you are required to use in your class because you don’t want to confuse yourself.

    • @bobleglob162
      @bobleglob162 Před 2 lety +2

      @@dmcguckian i hate statistics

  • @kingslayer1237
    @kingslayer1237 Před 4 lety +4

    Very informative. Thanks

  • @jomujojo
    @jomujojo Před 2 měsíci

    Thanks bro 🙏❤️

  • @umamahtahir2321
    @umamahtahir2321 Před 2 lety +3

    Can you tell how to find z value for one tailed test i.e Z(alpha)?

    • @dmcguckian
      @dmcguckian  Před 2 lety

      This playlist will have what you are looking for: czcams.com/play/PL51ZCXHa8bMmLbKrCGqhm_rcHVmGR2azs.html

  • @tweety8
    @tweety8 Před 4 měsíci

    But my table scores dont match with your one. Is it differ from one tail to two tail? The table i followed is one tail.. In 96% CI it's giving me critical value -.06😳

  • @favouraleph829
    @favouraleph829 Před rokem +1

    Thanks.

  • @simplelife589
    @simplelife589 Před rokem +1

    Thak you so much .

  • @gecoprincessitiahlaela.5708

    thank youuuuu

  • @Enjoyment-qr4yr
    @Enjoyment-qr4yr Před rokem

    Great sir , can u plzz share this table 😊

    • @dmcguckian
      @dmcguckian  Před rokem

      Hi you can access the z table I used here: www.statsprofessor.com/ch/20/837
      If that link doesn't work from CZcams, you can just search STATSprofessor.com, click STATS I, then click Course Documents, and finally Tables.

  • @fatimazaim503
    @fatimazaim503 Před 3 lety +1

    How to find z when level of significance is given?

    • @dmcguckian
      @dmcguckian  Před 3 lety

      Are you trying to find a critical value for a confidence interval or for a hypothesis test? You can find all of these topics organized at my website for free: www.STATSprofessor.com look at chapters 7 and 8 under either Stats I or Stats II

  • @justaldrin9775
    @justaldrin9775 Před rokem +1

    Thankyouuu