Mathematics, 08.06.2020 23:57, Naysa150724
The hard-cover edition of a book cost 3 times as much as the paperback edition. Both editions together cost $26.60. Find the cost of each.
Answers: 1
Mathematics, 22.06.2019 04:30, ashton3952525
The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u. s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.
Answers: 3
Mathematics, 22.06.2019 05:30, chandranewlon
Mr vale buys 48 flowers. he puts bunches of 6 flowers each in vases. if he sells each vase for $2, how much dose he earn?
Answers: 1
The hard-cover edition of a book cost 3 times as much as the paperback edition. Both editions togeth...
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