Mathematics, 15.11.2019 11:31 kdndiamond9101
Astudents received a score of 50 on his history test. the test had a mean of 69 and a standard deviation of 10. find the z score and assess whether his score is considered unusual.
Answers: 2
Mathematics, 21.06.2019 17:00
Can someone pls ! pls answer all. no explanation needed..
Answers: 1
Mathematics, 22.06.2019 02:00
Point a is at 12, and point d is at 56. point c is midway between a and d, and point b is midway between a and c. which of these is the coordinate of b?
Answers: 3
Mathematics, 22.06.2019 04:30
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 07:30
What is the equation of the line, that passes through (3,-1) and (-1,5)
Answers: 1
Astudents received a score of 50 on his history test. the test had a mean of 69 and a standard devia...
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