Mathematics, 24.06.2019 18:00 jackkkkk32
I. the national assessment of educational progress tested a simple random sample of 1,000 thirteen year old students in both 2004 and 2008 (two separate simple random samples). the average and standard deviation in 2004 were 257 and 39, respectively. in 2008, the average and standard deviation were 260 and 38, respectively. calculate a 90% confidence interval for the change in average scores from 2004 to 2008, and interpret this interval in the context of the application. (reminder: check conditions.)31
Answers: 2
Mathematics, 21.06.2019 14:30
Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?
Answers: 1
Mathematics, 21.06.2019 22:10
What is the circumference of a circle with an area of 50.24 cm²?
Answers: 2
Mathematics, 22.06.2019 00:20
❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h
Answers: 2
Mathematics, 22.06.2019 01:00
The dance committee of pine bluff middle school earns $72 from a bake sale and will earn $4 for each ticket they sell to the spring fling dance. the dance will cost $400 write an inequality to determine the number, t of tickets the committee could sell to have money left over after they pay for this year's dance. what is the solution set of the inequality?
Answers: 2
I. the national assessment of educational progress tested a simple random sample of 1,000 thirteen y...
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