Question

ms Help Last edit was seconds ago es New... 11 + BI U A G- EEEE IE 2 3 2 5 6 In order to determine whether or not gender and movie preference are independent, the following data is collected. Can we conclude gender is related to movie preference at a = 5%? Movie Preference Gender Male Female Romance 10 50 Comedy 20 25 Drama 5 5 Adventure Mystery 40 15 15 15 5 In a recent study of 2,541 Covid patients admitted into a hospital, 671 who were not treated with hydroxychloroquine died. From that same group, 569 who were treated with hydroxychloroquine died. Would this data support the claim that hydroxychloroquine is an effective treatment at a = 10? 6 Insurance companies charge clients under 25 more for auto insurance than clients over 25. They claim this is because clients under 25 have more accidents. A random sample of 40 drivers under 25 had a mean of 1.2 accidents per year with a standard deviation of 1. A sample of 40 drivers over 25 had a mean of 94

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we want jo jest, Ho : whether or not gender and movie preference une independent vs. Hy genders and movie preference not independeng ie gelated we given that the observed frequency coi) filmati Movie preference i Gender Drama Adventure Mustay Toral Males diam l 10 20 40 female 15 llo Total expected count = (now to fal}x ( Column totally Table for expected count Romance Comedy 15 90 50 60 25 45 5 5 10. 15 55 30 2002 N=200 Male female Romance comedy Drama Adventure Mystry 27 20-25 4.5 24.75 1.2.5 33 24.75. 5.5 16.5 30:25 Z Of Here eis - 4.5<5 we may use the continuity correction 3) 'STAT = Ill0i-Ei) -0.5) Ei -- (110-271-0-5){ (120-20.75 -0:5.) 1 20.75 + 6150-3A 1-0:5326 +015-16:5)-000" 16.5 2 + 27 + 33

. X STATE = 34, 456 ) - df - (Total number of cows-1) * (Number column - 1) (2-1) * (5-0) - 4 d=57 lui critical value = x2 = 9:488 Decision Here 'STAT > azid=9.488 . Dec's r. We may reject nue hypothests Conclusions. There is sufficient evidence to conclude that gender is related to movie poeference at das .