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Math Help - statistic problem

  1. #1
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    statistic problem

    The following letter was written to a well-known dispenser of advice to the lovelorn:

    Dear Abby,
    You wrote in your column that a woman is pregnant for 266 days. Who said so? I carried my baby for 10 months and five days, and there is no doubt about it because I know the exact day my baby was conceived. My husband is in the Navy and it couldnít have possibly been conceived any other time because I saw him only once for an hour, and I didnít see him again until the day before the baby was born. I donít drink or run around, and there is no way this baby isnít his, so please print a retraction about the 266-ay carrying time because otherwise I am in a lot of trouble.
    - a San Diego Reader

    Whether or not San Diego Reader is telling the truth is a judgment that lies beyond the scope of any statistical analysis, but quantifying the plausibility of her story does not. According to the collective experience of generations of pediatricians, pregnancy durations X, tend to be normally distributed with m = 266 days and s = 16 days. Do a probability calculation that addresses San Diego Readerís credibility. What would you conclude?

    please put solutions so i can understand clearly. thank you so much.
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  2. #2
    Senior Member Danneedshelp's Avatar
    Joined
    Apr 2009
    Posts
    303
    Quote Originally Posted by champman View Post
    The following letter was written to a well-known dispenser of advice to the lovelorn:

    Dear Abby,
    You wrote in your column that a woman is pregnant for 266 days. Who said so? I carried my baby for 10 months and five days, and there is no doubt about it because I know the exact day my baby was conceived. My husband is in the Navy and it couldnít have possibly been conceived any other time because I saw him only once for an hour, and I didnít see him again until the day before the baby was born. I donít drink or run around, and there is no way this baby isnít his, so please print a retraction about the 266-ay carrying time because otherwise I am in a lot of trouble.
    - a San Diego Reader

    Whether or not San Diego Reader is telling the truth is a judgment that lies beyond the scope of any statistical analysis, but quantifying the plausibility of her story does not. According to the collective experience of generations of pediatricians, pregnancy durations X, tend to be normally distributed with m = 266 days and s = 16 days. Do a probability calculation that addresses San Diego Readerís credibility. What would you conclude?

    please put solutions so i can understand clearly. thank you so much.
    Please post your work so we can understand where you need help. Thank you.
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