Stats
The census figures show that the average income for a family in a rural region is approximately $34,860 per year. A random sample has a mean income of $33,566 per year, with a standard deviation of $1,245. At a sig. level of .0.01 is there enough evidence to reject the claim? ...
Spanish 2
Thanks!! This really helps me!!
Spanish 2
Thanks!
Spanish 2
All the verbs that have not been conjugated need to be either in preterite or imperfect form. My spanish teacher hasnt really explained it that well and I am confused on how to know whether its imperfect or preterite.Now we have a test on it tomorrow. Can someone please help m...
college agebra
(3xsquared-2x-1)(xsquared+x+5)
Trigonometry
I need help proving trigonometric identities. Most of my difficulty lies in actually factoring the equation. For example, one of the problems is (cos t - sin t)^2 + (cos t + sin t)^2 = 2. I have to prove that the left side is equal to 2. How do I do that?
rivera middle school
pablo made bread and muffins. he used 3/4 cups of flower for bread and 5/8 cups of flower for muffins. how much flower did he use in all.
Accounting
Alliant Corporation sold $100,000,000 face value 8% bonds. The bonds mature in 20 years and pay interest semiannually. The going market rate of interest on bonds of similar risk is 6%. How much will Aliant receive upon the sale of the bonds
Math/Stats
I have like 9 more of these problems, can someone please help me out so I can get started. thanx JS In a random sample of 35 tractors, the annual cost of maintenance was $4,425 and the standard deviation was $775. Construct a 90% confidence interval for this. Assume the annual...
Statistics :(
I have like 9 more of these problems, can someone please help me out so I can get started. thanx JS In a random sample of 35 tractors, the annual cost of maintenance was $4,425 and the standard deviation was $775. Construct a 90% confidence interval for this. Assume the annual...
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