14. 8 points I Previous Answars My Notes Ask Your Teacher On March 23, 2002, MSN

Question

14. 8 points I Previous Answars My Notes Ask Your Teacher On March 23, 2002, MSNBC.com reported the story "Kids' bad habits blamed on movies," whose findings were based on a SRS of 8400 middle-school students in 15 schools in New Hampshire and Vermont ranging in age from 9 to 15 years. Each child was asked how their parents restricted their movie watching (never allowed to watch R rated films, occasionally allowed to watch R rated films, or allowed to watch anything), and whether or not they smoked Below is the relevant Stat Tools oulput from this study Use this oulput to test the following claim there is an association belween which type ol movies a child is allowed to watch and whether or not the child smokes Ratings of Movies Allowed by Parents Smoking Hablts inal Counts Dont Smoke Sinoke Total Anything No R Rate: 698 2243 70E6 asional R Kated 4U? 1324 2880 8400 Total oRaws Dont Smnke 62% 23.07% 84.64% Smakr 17% E.93% 15.36% Anything R Rated asional R Rated Smnke 734.0475 119.1071 420.845 eched Counts Don't Smnke 4205 9524 Anything R Rated asional R Rated CM-Squere Startistic Chi Square 832g 2229.1548 55.310 0.0001 Value (a) What are the hypotheses? Ho H There s an association between the ratings of moves a owed by parents and smoking There is no associat on between the ratings of moves allowed by parents and smoking habits of their children habits of their children Ho: There is an association between the ratings of movies allowed by parents and smoking habits of their children; Ha: There is no association between the ratings of movies allowed by parents and smoking habits of their children. (b) Are the conditions satisfied for conducting a chi-squared test? No Yes (c) What is the p-value of the chi-square test? Use 3 decimal places

Explanation / Answer

e) Since we are rejecting the null hypothesis, that mean we have sufficient evidence to conclude the existance of association between two given variables.

Hence,

Option B is correct.

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