99St STAT 250 (3) Abbey Allen 11/4/17 8:10 PM Quiz: Chapter 8 Review Quiz Time L
ID: 3355894 • Letter: 9
Question
99St STAT 250 (3) Abbey Allen 11/4/17 8:10 PM Quiz: Chapter 8 Review Quiz Time Limit: 01:30:00 Submit Quiz This Question: 1 pt 2 of 13 (0 complete This Quiz: 13 pts possible n color that was established in the 1940s was 0.27. Check to see whether the conditions for using a one-proportion z-test are met assuming the researcher wanted to test to see f the proportion dreaming in color had changed since the 1940s Are the conditions met? O B. Yes, all the conditions are met. ° C. No, the sample size is not large enough to produce at least 10 successes and 10 failures No, the observations are not independent. D.Explanation / Answer
Correct answer : Option (B) Yes, all the conditions are met
since i) np > 130*(89/130) = 89 > 10 and nq = 130*41/130 = 41 which is also greater than 41
ii) sample observations are independent
The both conditions are satiesfied
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