![subject](/tpl/images/cats/mat.png)
Mathematics, 29.06.2019 03:20 smariedegray
To estimate μ, the mean salary of full professors at american colleges and universities, you obtain the salaries of a random sample of 81 full professors. the sample mean is = $77,220 and the sample standard deviation is s = $4500. a 98% confidence interval for μ is
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Someone answer asap for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30
What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00
What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no
Answers: 1
You know the right answer?
To estimate μ, the mean salary of full professors at american colleges and universities, you obtain...
Questions
![question](/tpl/images/cats/mkx.png)
Arts, 03.01.2020 16:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.01.2020 16:31
![question](/tpl/images/cats/ekonomika.png)
Business, 03.01.2020 16:31
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.01.2020 16:31
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.01.2020 16:31
![question](/tpl/images/cats/fizika.png)
Physics, 03.01.2020 16:31
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.01.2020 16:31
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 03.01.2020 16:31
![question](/tpl/images/cats/istoriya.png)
History, 03.01.2020 16:31
![question](/tpl/images/cats/himiya.png)
Chemistry, 03.01.2020 16:31
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 03.01.2020 16:31
![question](/tpl/images/cats/himiya.png)
Chemistry, 03.01.2020 17:31
![question](/tpl/images/cats/mat.png)
Mathematics, 03.01.2020 17:31
![question](/tpl/images/cats/biologiya.png)
Biology, 03.01.2020 17:31