QX4.4 in Assignment 4

Discussion in 'CT3' started by sujak, Mar 20, 2015.

  1. sujak

    sujak Member

    The value of zr is 4.1468998 and not 4.116619 in page 2 of Assignment X4 Solutions. Consequently, a 95% confidence interval of z(rho) is (2.1869,6.1069)
    But the 95% confidence interval of rho is (0.975,1.000)
    Please confirm if I am right.
     
    sujak, Mar 20, 2015
    #1
  2. Hemant Rupani

    Hemant Rupani Senior Member

    for r=0.9995 z_r is 4.1468998, for r=0.999468792 z_r is 4.116619.
    just approx. differ.
     
    Hemant Rupani, Mar 20, 2015
    #2
  3. sujak

    sujak Member

    Please let me know to how many digits do we have to approximate in the exam
     
    sujak, Mar 23, 2015
    #3
  4. John Lee

    John Lee ActEd Tutor Staff Member

    For confidence intervals we are only interested in 3 SF.
     
    John Lee, Mar 23, 2015
    #4
  5. sujak

    sujak Member

    Thank you.
     
    sujak, Mar 23, 2015
    #5

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