Mathematics, 20.07.2019 03:20, yuki430
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 65 students in the highest quartile of the distribution, the mean score was x = 178.30. assume a population standard deviation of ? = 7.61. these students were all classified as high on their need for closure. assume that the 65 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 99% confident that the sample mean score is within 1.8 points of the population mean score for students who are high on the need for closure? (round your answer up to the nearest whole number.)
Answers: 2
Mathematics, 21.06.2019 21:50, safiyyahrahman8937
Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?
Answers: 1
Mathematics, 21.06.2019 22:30, carltonwashington23
Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?
Answers: 2
Mathematics, 22.06.2019 06:00, Ezekielcassese
Ineed with number 8 and answer fast because i only have 11 minutes or else i get a f for my report card
Answers: 2
Three experiments investigating the relation between need for cognitive closure and persuasion were...
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