Mathematics, 18.03.2022 03:10 neariah24
PLEASE HELP I'M DOING A TEST NOW
The Trial Urban District Assessment (TUDA) is a government-sponsored study of student achievement in large urban school districts. TUDA gives a reading test scored from 0 to 500. A score of 243 is a “basic” reading level and a score of 281 is “proficient.” Scores for a random sample of 1470 eighth-graders in Atlanta had a mean of 240 with standard deviation of 42.17.
Construct and interpret a 99% confidence interval for the mean reading test score of all Atlanta eighth-graders. Show your calculations and round your interval to three decimal places.
Answers: 2
Mathematics, 21.06.2019 21:50
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
Answers: 1
Mathematics, 21.06.2019 22:20
1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.
Answers: 2
Mathematics, 22.06.2019 00:00
Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read
Answers: 3
Mathematics, 22.06.2019 00:30
What is the perimeter of a rectangle if the length is 5 and the width is x?
Answers: 3
PLEASE HELP I'M DOING A TEST NOW
The Trial Urban District Assessment (TUDA) is a government-sponso...
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