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Math Help - P-value..hypotheses

  1. #1
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    P-value..hypotheses

    I had a quiz. I want to know if I got this right..

    The amount of students who enrolled in AP statistics and dropped out is 13%.
    A company wants to test a computer program to see if it is effective to help the students.
    They then took a sample of students who used the product. Out of 203 students, 11% of the students dropped out.

    Whats the meaning of P-value?
    Of course what is pvalue?
    What would you say about this? Is the product effective?

    What I did was find p-value and then did a confidence interval.
    Can someone do it so I can see if I was right? thanks!
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  2. #2
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    Quote Originally Posted by Morgan82 View Post
    I had a quiz. I want to know if I got this right..

    The amount of students who enrolled in AP statistics and dropped out is 13%.
    A company wants to test a computer program to see if it is effective to help the students.
    They then took a sample of students who used the product. Out of 203 students, 11% of the students dropped out.

    Whats the meaning of P-value?
    Of course what is pvalue?
    What would you say about this? Is the product effective?

    What I did was find p-value and then did a confidence interval.
    Can someone do it so I can see if I was right? thanks!
    If you show your working I'll let you know if you're right or not.
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  3. #3
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    Quote Originally Posted by Morgan82 View Post
    I had a quiz. I want to know if I got this right..

    The amount of students who enrolled in AP statistics and dropped out is 13%.
    A company wants to test a computer program to see if it is effective to help the students.
    They then took a sample of students who used the product. Out of 203 students, 11% of the students dropped out.

    Whats the meaning of P-value?
    Of course what is pvalue?
    What would you say about this? Is the product effective?

    What I did was find p-value and then did a confidence interval.
    Can someone do it so I can see if I was right? thanks!
    Ho : p=.13
    Ha : P<.13
    SD=.0219
    z-score=-.907
    P=.1814

    So, would you say the product was effective?
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  4. #4
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    Quote Originally Posted by Morgan82 View Post
    Ho : p=.13
    Ha : P<.13
    SD=.0219
    z-score=-.907
    P=.1814

    So, would you say the product was effective?
    Is the p-value larger or smaller than the level of significance you used .....?

    (By the way, one small thing .... I get sd = 0.0220 ......)
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  5. #5
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    Quote Originally Posted by mr fantastic View Post
    Is the p-value larger or smaller than level of significance you used .....?
    larger. 5%
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  6. #6
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    Quote Originally Posted by Morgan82 View Post
    larger. 5%
    Well, if your p-value is larger than the level of significance used, you must realise that the p-value is NOT significant .......!! And if the p-value is not significant, ........
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