Question

please help with finding upper limit and lower limit how to solve
Three experiments

investigating the relation between need for cognitive closure and persuasion were performed. Part of the study involved administering a “need for closure scale” to a group of students enrolled in an introductory psychology course. The “need for closure scale” has scores ranging from 101 to 201. For the 66 students in the highest quartile of the distribution, the mean score was x = 178.30. Assume a population standard deviation of σ = 8.17. These students were all classified as high on their need for closure. Assume that the 66 students represent a random sample of all students who are classified as high on their need for closure. Find a 95% confidence interval for the population mean score μ on the “need for closure scale” for all students with a high need for closure. (Round your answers to two decimal places.)

lower limit    

upper limit  

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