Three experiments investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved group of students enrolled in an introductory psychology course. The need for dosure scale' has scores ranging from 101 to 201. For the students in the highest quartile of the distribution, the mean score was x 176.50. Assume a population standard deviation of a 7.75. These students were all classified as high on their need for closure. Assume that the students represent a random sample of all students who are classified as high on their need for closure. How large a sample is needed if we wish to be confident that the sample mean score is within 2.2 points of the population mean score for students who are high on the need for dere? (Round your answer up to the nearest whole number) 17800 X students MY NOTES ASK YOUR TEACHER 5. (-/6 Points) DETAILS BBUNDERSTAT12 7.R.010. A research group conducted an extensive survey of 3114 wage and seried workers on es ranging from relationships with their bosses to household chores. The data were gathered through hour long telephone interviews with a nationally representative sample is response to the question, "What does success mean to your" 1467 responded, Personal faction from doing a good job. Leto be the population proportion of all wage and salaried workers who would respond the same way to the stated question. How large a sample is needed if we wish to be 95% confident that the sample percentage of those equating success with personal satisfaction is within 22% of the population percentage (Hint: Unsep -0.47 as a preliminary estimate. Round your answer up to the nearest whole number) workers 5. (-/6 Points) DETAILS BBUNDERSTAT12 7.R.010. MY NOTES ASK YOUR TEACHER A research group conducted an extensive survey of 3114 wage and started workers on issues ranging from relationships with their bosses to household chores. The data were gathered through hour long telephone interviews with a nationally representative sample in response to the question, "What does com means to you?" 1463 responded, "Personal satisfaction from doing a good job. tp be the population proportion of all wage and salaried workers who would spend the same way to the stated question. How large a sample is needed if we wish to be confident that the sample percentage of those equating success with personal satisfaction is within 24 of the population percentage (Hint: Use p0.47 as a preliminary estimate. Round your answer up to the nearest whole number) workers