Statistics questionnaire

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  • Statistics Questionnaire Luis NunezBonn HidalgoPeriod 3

  • Question 1:Have you ever experience waking up from your sleep and feeling paralyzed? (Waking Sleep Paralysis)

    Yes = 33 (37%)No = 56(63%)n=89Ho: BPHS experience of Waking Sleep Paralysis is the same as average at Carlton University, Ottawa, Canada p = .21 (http://www.sciencedirect.com/science/article/pii/S0092656685710173)Ha: p 21%Conditions/Assumptions: Randomness we sampled classrooms randomly (cluster)Independence one persons experience of waking sleep paralysis does not affect anotherLess than 10% - 89 is less than 10% of population of Carlton UniversitySuccess/Failure np = 89(.37) = 32.93 > 10 n(1-p) = 89(.63) = 56.07 > 10We will conduct a 1-Proportion z-Test

    With a P-value so low, we reject the Ho. There is evidence that BPHS students experience Waking Sleep Paralysis differently than the population at Carlton University.

  • Question 2:How many television sets are in your household?

    BPHS mean: 3.92Ho: = 2.24Ha: 2.24Conditions/Assumptions:Random we sampled classrooms randomly (cluster) Independence one person does not affect the number of television in anothers householdLess than 10% - 89 is less than 10% of the U.S. populationWe will conduct a t-Test for means

    With a P-value so low, we reject the Ho. There is evidence that BPHS students have different numbers of television sets, on average, than the population of the U.S.

  • Question 3Do you own any type of game console?

    Yes = 77 (87%)No = 12(13%)n=85Ho: proportion of BPHS students who own at least 1 game console is the same as national average P = .524 (http://www.gizmag.com/go/7002/)Ha: p .524Conditions/Assumptions: Randomness we sampled classrooms randomly (cluster)Independence one persons ownership of game console does not affect anothers Less than 10% - 85 is less than 10% of U.S. populationSuccess/Failure np = 89(.87) = 77.43 > 10 n(1-p) = 89(.13) = 11.57 > 10We will conduct a 1-Proportion z-Test

    With a P-value so low, we reject the Ho. There is evidence that the proportion of BPHS students that own a game console differs from the national average.

  • Question 4How many text messages do you send per month?

    BPHS mean: 3904Ho: = 3339Ha: 3339n = 58http://www.mobileburn.com/news.jsp?Id=11267Conditions/Assumptions:Random we sampled classrooms randomly (cluster) Independence one person does not affect the number of television in anothers householdLess than 10% - 58 is less than 10% of the U.S. populationWe will conduct a t-Test for means

    With a P-value so high, we do not reject the Ho. There is no evidence that BPHS students send text messages at a different rate than the general population.

  • Question 5Is believing that Batman is superior or not to Superman independent of grade level?

    Ho: Opinionating that Batman is superior to Superman is independent of grade (10th or 12th grade)Ha: There is an association between believing Batman is superior to Superman and gradeAssumptions/Conditions:Randomness we sampled classrooms randomly (cluster)Less than 10% - there is less than 10% if all humansExpected counts all are greater than 5We will perform a Chi-Squared test df = (2-1)(2-1) = 1

    With a P-value so high, we do not reject the Ho. There is evidence that believing that Batman is superior to Superman or not is independent of grade.

  • Question 6Is believing that a car is a more effective from of transportation than a train or not independent of grade level?

    Ho: Opinionating that car is a more effective from of transportation than a train or not is independent of grade (10th or 12th grade)Ha: There is an association between believing a car is a more effective from of transportation than a train or not and grade levelAssumptions/Conditions:Randomness we sampled classrooms randomly (cluster)Less than 10% - there is less than 10% if all humansExpected counts all are greater than 5We will perform a Chi-Squared test df = (2-1)(2-1) = 1

    With a P-value so high, we do not reject the Ho. There is evidence that believing that opinionating that car is a more effective from of transportation than a train or not is independent of grade (10th or 12th grade).

  • Question 7Is experiencing waking sleep paralysis independent of grade level?

    Ho: Experiencing waking sleep paralysis is independent of grade (10th or 12th grade)Ha: There is an association between experiencing waking sleep paralysis and grade levelAssumptions/Conditions:Randomness we sampled classrooms randomly (cluster)Less than 10% - there is less than 10% if all humansExpected counts all are greater than 5We will perform a Chi-Squared test df = (2-1)(2-1) = 1

    With a P-value so high, we do not reject the Ho. There is evidence that experiencing sleep paralysis is independent of grade level.

  • Question 8Is witnessing someone in possession or in use of illegal drugs on campus independent of grade?

    Ho: Witnessing someone in possession or in use of illegal drugs on campus is independent of grade (10th or 12th grade)Ha: There is an association between witnessing someone in possession or in use of illegal drugs on campus and grade levelAssumptions/Conditions:Randomness we sampled classrooms randomly (cluster)Less than 10% - there is less than 10% if all humansExpected counts all are greater than 5We will perform a Chi-Squared test df = (2-1)(2-1) = 1

    With a P-value so high, we do not reject the Ho. There is evidence that believing that opinionating that car is a more effective from of transportation than a train or not is independent of grade (10th or 12th grade).