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Msaada : Math (BUsiness statistics)

Discussion in 'Tech, Gadgets & Science Forum' started by donlucchese, Apr 2, 2012.

  1. donlucchese

    donlucchese JF-Expert Member

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    Qn. A drug manufacturer claims that a certain drug cures a blood disease on the average 80% of the time. To check the claim, government testers used the drug on a sample of 100 individuals and decide to accept the claim if 75 or more are cured.
    i. What is the probability that the claim will be rejected when the cure probability is in fact 0.8?
    ii. What is the probability that the claim wil lbe accepted by the govt. when the cure probability is as low as 0.7?
     
  2. Abdulhalim

    Abdulhalim JF-Expert Member

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    Nenda library ukasome acha uvivu..
     
  3. donlucchese

    donlucchese JF-Expert Member

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    @jy%5;~
     
  4. Osaka

    Osaka JF-Expert Member

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    Hii ndiyo JF bana! Hata spoon-fooding inapatikana JF. Na usipopata majibu mapema leo na Kesho paper! Wafa!
     
  5. donlucchese

    donlucchese JF-Expert Member

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    teh teh
     
  6. s

    siwalaze Senior Member

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    nenda library,pga reference kwa notice,au katafte google,unakuwa kama kibela bhana
     
  7. simplemind

    simplemind JF-Expert Member

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    Hint: assume population mean P= 0.8. Work out the standard error for sample of hundred using P ie sd error=sqrt(P(1-P)/N), As long as NP and N(1-P) > than 5 you can assume sample distribution is normally distributed hence you can work out the required probability using the normal distribution tables.
     
  8. donlucchese

    donlucchese JF-Expert Member

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    thanx mkuu umeoko ajahazi
     
  9. Jamiix

    Jamiix JF-Expert Member

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    Lisipo toka sasa na ushakariri,ha ha ha ha sipati picha
     
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