Mathematics, 19.12.2019 22:31 norinashanleyc
For a standardized psychology examination intended for psychology majors, the historical data show that scores have a mean of 520 and a standard deviation of 180. the grading process of this year's exam has just begun. the average score of the 35 exams graded so far is 518. what is the probability that a sample of the 35 exams will have a mean score of 518 or more if the exam scores follow the same distribution as in the past? carry your intermediate computations to at least four decimal places. round your answer to at least three decimal places.
Answers: 2
Mathematics, 21.06.2019 21:30, alegora78
He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?
Answers: 1
For a standardized psychology examination intended for psychology majors, the historical data show t...
History, 20.04.2020 19:15
History, 20.04.2020 19:15
History, 20.04.2020 19:15
History, 20.04.2020 19:15
English, 20.04.2020 19:15
History, 20.04.2020 19:15