Mathematics, 24.06.2019 12:40 maciemessing2
Agroup of 60 computer science students were taught introductory computer programming class with an innovative teaching method that used a graphical interface and drag-and-drop methods of creating computer programs. at the end of the class, 43 of these students said that they felt confident in their ability to write computer programs. another group of 42 students were taught the same material using a standard method. at the end of class, 25 of these students said they felt confident. assume that each class contained a simple random sample of students. let px represent the population proportion of students taught by the innovative method who felt confident and let py represent the population proportion of students taught by the standard method who felt confident. find a 99% confidence interval for the difference px−py . round the answers to four decimal places.
Answers: 2
Mathematics, 21.06.2019 14:00
Pokój na planie w skali 1: 100 jest prostokątem i ma wymiary 5,2cmx4,4cm. jaką powierzchnię w m2 ma pokój? ile m bieżących wykładziny dywanowej o szerokości 5m trzeba kupić by wyłożyć cały pokój jednym kawałkiem przy minimalnych stratach ? ile zapłacimy za wykładzinę jeśli 1m2 kosztuje 30 zł ?
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Mathematics, 21.06.2019 23:50
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Agroup of 60 computer science students were taught introductory computer programming class with an i...
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