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Math Help - Need answers and some explanation...

  1. #1
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    Smile Need answers and some explanation...

    Q1. The finite population multiplier does not have to be used when the sampling fraction is:

    a. greater than 0.05 b. greater than 0.50 c. less than 0.50 d. None

    Q2. A certain normally distributed population has a known s.D of 1. What is the total width of a 95% confidence interval for the population mean?

    a. 0.98 b. 1.96 c. 3.92 d. cant be determined from above info.
    Last edited by nasir31971; September 22nd 2011 at 12:44 AM.
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  2. #2
    Grand Panjandrum
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    Re: Need answers and some explanation...

    Quote Originally Posted by nasir31971 View Post
    Q1. The finite population multiplier does not have to be used when the sampling fraction is:

    a. greater than 0.05 b. greater than 0.50 c. less than 0.50 d. None
    need more information on the above

    Q2. A certain normally distributed population has a known s.D of 1. What is the total width of a 95% confidence interval for the population mean?

    a. 0.98 b. 1.96 c. 3.92 d. cant be determined from above info.
    If you know the mean and SD what are the limits of the 95% CI? What is the corresponding width?

    CB
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