Mathematics, 04.11.2019 21:31 Briza19
An english teacher has been teaching a sixth grade composition class for many years. he has the feeling that over the past several years, the writing ability of students has changed. a national test of proficiency in composition was administered 5 years ago. the resulting distribution of scores was normally shaped, had a mean of 85 and a standard deviation of 10.9. in order to test his feeling, he gives his present class of 43 students the same proficiency test. the resulting mean is 80 and the standard deviation is 8.7. using the z test with α= 0.052 tail, the appropriate critical value
Answers: 1
Mathematics, 21.06.2019 16:00, pringleosmond
65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.
Answers: 3
Mathematics, 21.06.2019 17:00, cjd1214812148
The rectangle on the right is the image of the rectangle on the left. what transformation would result in this image? reflection rotation translation dilation
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Mathematics, 21.06.2019 17:00, burritomadness
If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?
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Mathematics, 21.06.2019 17:30, rosie20052019
One positive number is 9 more than twice another. if their product is 95, find the numbers
Answers: 1
An english teacher has been teaching a sixth grade composition class for many years. he has the feel...
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