tion Heip A 2003 study of dreaming found that out of a random sample of 124 peop

Question

tion Heip A 2003 study of dreaming found that out of a random sample of 124 people, 84 reported dreaming in color. However, the rate of reported dreaming in color that was established in the 1940s was 0.26. Check to see whether the conditions for using a one-proportion z-test are met assuming the researcher wanted to test to see if the proportion dreaming in color had changed since the 1940s Are the conditions met? OA. No, the population is not more than 10times bigger than the sample size O B. Yes, all the conditions are me ° C. No, the observations are not independent. O D. No, the sample size is not large enough to produce at least 10 successes and 10 failures. se Click to select your answer Sample Tests and Quizzes

Explanation / Answer

P = 0.26

p = 84/124 = 0.68

n * P = 124 * 0.26 = 32.24 > 10

n * (1 - P) = 124 * 0.74 = 91.76 > 10

Option-B is the correct answer

  

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