Statistics > QUESTIONS & ANSWERS > Stats Medic - Chi-Square Test for Independence Answer Key Are Taco Tongue and Evil Eyebrow independe (All)

# Stats Medic - Chi-Square Test for Independence Answer Key Are Taco Tongue and Evil Eyebrow independent? ( all answers correct )

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Name: Hour: Date: Are Taco Tongue and Evil Eyebrow independent? 1. Describe what it means for two events to be independent. 2. Calculate the expected counts. Observed: Expected: 3. Do the data pr... ovide significant evidence that there is an association between the ability to Taco Tongue and Evil Eyebrow for all Seniors? Use STATE: Hypotheses: Significance level: PLAN: Name of procedure: chi-square test for independence Check conditions: DO: Specific Formula: Work: Picture: Test statistic: P-value: CONCLUDE: α = 0.05 Is there an association between the Taco Tongue and the Evil Eyebrow? Below is the data for a random sample of 600 Senior students. Do we have convincing evidence that the ability to do the Taco Tongue and Evil Eyebrow are associated for all Seniors? Knowing whether or not one event occurs does not change p(A)=p(AlB)=p(AlBY the probability of the other event. Excpoegnted , rowtotaxdumntotal grand total 160 320 40 80 0=0.05 Ho: TacoTongue and Evil Eyebrow are not associated for all seniors (independent) Hai Taco Tongue and Evil Eyebrow are associated for all Seniors(not independent) Random: " random sample of 600 Seniors " s so we cangeneralize df - Crows - Dx (columns -D lot : 600 E tho(all seniors) →so samplingwtoithpofffefgtaieomer.to/df=G-D(2-D=I Large counts: All expected counts Z S (see table)- so the sampling XZ x: shoes . distribution.in . E tm 2/2=480,66-605+103%-207:(2%405+400-805 T00 5 X'= 2.5+1.25-110+5 2/3-18.75×2=18.75 p-value = 0.000015 Interpret pwawe Assuming Ho is true (no association) , there is a 0.000015 probability of person getting a XZ of 18.75 orgreater purely by chance . Because 0. 00001560.05 conclusionwe reject Ho and do have convincing evidence of an association 's between Taco Tongue a Evil Eyebrow for all seniors. follow 'D follow up: The number of No TTAes EE was much lower than expected . This study source was downloaded by 100000819946675 from CourseHero.com on 03-25-2021 12:01:28 GMT -05:00 https://www.coursehero.com/file/80533528/Stats-Medic-Chi-Square-Test-for-Independence-Answer-Keypdf/ This study resource was shared [Show More]

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