Hypothesis Test for Proportion | Examples | P-value | Z table

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  • čas přidán 22. 08. 2024

Komentáře • 19

  • @Aristiq
    @Aristiq Před 3 měsíci +1

    You explain it better than any teacher, thanks!

  • @Mvd0x
    @Mvd0x Před 11 měsíci +3

    Thank you for this learning material, and I wish you the best 👍

    • @joshemman
      @joshemman  Před 11 měsíci +1

      I wish you the best too, buddy.

  • @velmurugan279
    @velmurugan279 Před rokem +1

    Very good explanation

  • @vespereneidk
    @vespereneidk Před rokem

    you really saved my exams

  • @andrewk8817
    @andrewk8817 Před rokem

    Hello sir, could you please do a video on EOQ and EPLS Models in Inventory. thank you

  • @shamma6466
    @shamma6466 Před rokem +1

    thank you sooo muchhhh

  • @abuda7em20
    @abuda7em20 Před rokem

    Hi Sir , Thank you for your valuable video, but I have a question please.
    At 2:00 min there is number 5 shows as ( 162.5 >= 5 ) from where we got this 5 ?

    • @joshemman
      @joshemman  Před rokem

      It is a required condition for the test to be valid.
      The test requires np and n(1-p) to be >=5. I didn't focus on it in the video because some people use 10 (rather than 5), some use other values, and some don't mention it at all.

    • @abuda7em20
      @abuda7em20 Před rokem

      @@joshemman so is it called as ( significant level ) or it has another name ?
      and thank you for your replay

    • @joshemman
      @joshemman  Před rokem

      @@abuda7em20No, it (the 5) is not the significance level.
      alpha is the significance level.

  • @princesssheeragamotinan3125
    @princesssheeragamotinan3125 Před 3 měsíci

    how did you get the answer 2.32 was

  • @osama_statimath
    @osama_statimath Před rokem

    👍

  • @theshariqsartwork
    @theshariqsartwork Před 7 měsíci

    why did we minus it at 3:15. (1-0.9898)?

    • @joshemman
      @joshemman  Před 7 měsíci +3

      The area in the table is the "less than area". Since out Z is positive, we need the area in the right tail which is 1 - "less than area".
      If Z were negative, we will use the "less than area" without subtracting from 1.

  • @lavishedgaming2140
    @lavishedgaming2140 Před rokem

    how did u sove the hypothesis test because im getting a different answer i got 5.80

    • @joshemman
      @joshemman  Před rokem

      The numerator is 0.72 - 0.65 = 0.07
      Content of denominator square root: =0.65*0.35/250 = 0.00091
      Taking the square root gives 0.0302.
      Z = 0.07/0.0302 = 2.32

  • @MensahB
    @MensahB Před rokem

    Please sir can you help me with your email address thanks 🙏