Statistics Questionnaire Statistics Questionnaire

Luis NunezLuis NunezBonn HidalgoBonn Hidalgo

Period 3Period 3

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

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

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

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

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

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

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

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

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

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

BPHS mean: 3904BPHS mean: 3904Ho: µ = 3339Ho: µ = 3339 Ha: µ ≠ 3339Ha: µ ≠ 3339 n = 58n = 58http://www.mobileburn.com/news.jsp?Id=11267http://www.mobileburn.com/news.jsp?Id=11267

Conditions/Assumptions:Conditions/Assumptions:Random – we sampled classrooms randomly (cluster) Random – we sampled classrooms randomly (cluster) Independence – one person does not affect the number of television in Independence – one person does not affect the number of television in another’s householdanother’s householdLess than 10% - 58 is less than 10% of the U.S. populationLess than 10% - 58 is less than 10% of the U.S. populationWe will conduct a t-Test for meansWe will conduct a t-Test for means

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

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

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

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

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

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

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

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

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

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

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

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

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