# An admissions director wants to estimate the mean age of all students enrolled at a college

###### Question:

An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within one year of the population mean. Assume the population of ages is normally distributed. Determine the minimum required sample size to construct a 80% confidence interval for the population mean. Assume the population standard deviation is 1.2 years

#### Similar Solved Questions

##### In the diagram below, which area represents the deadweight loss from monopoly? 9 2 10 MC...
In the diagram below, which area represents the deadweight loss from monopoly? 9 2 10 MC AIB G H IMR Demand 1 23 4 5 678 9 10 11 g CDE E H...
##### (a) Compute the Breadth-First Search tree for the following graph, using node a as the root....
(a) Compute the Breadth-First Search tree for the following graph, using node a as the root. Please use alphabetic order to make choice when you have multiple choices. You only need to show the tree without showing the steps. (b) What is the height of the tree? Currently I have a tree of depth 3, a...
##### 9) Find the derivative of f(t) = Seinna vz? + x + 1dx with respect to...
9) Find the derivative of f(t) = Seinna vz? + x + 1dx with respect to r....
##### Lab
If the electrical vibrator is connected to a 110 v 60 hz line, why do we take the theoretical value of the frequency to be 120 hz...
##### R2 be a random variable with E(X) u = (1, 2)T, let Q [0, 2] be...
R2 be a random variable with E(X) u = (1, 2)T, let Q [0, 2] be 2. (10 marks) Let X a г row vector and let Ги Гі2 T21 I22. E((X-)(X -)T) r (a) Compute E(QX) and write your answer in terms of the elements of u and (5 marks) Г. (b) Compute the variance of QX and wri...
##### When you are performing research related to healthcare, do you use PubMed? Do you use Google?...
When you are performing research related to healthcare, do you use PubMed? Do you use Google? Why do you use one or both? In what cases do you use PubMed? In what cases do you use Google search engine....
##### If Matrix A, r(A)=n, prove that r(AB)=r(B), for any B nxp, and show that for any...
If Matrix A, r(A)=n, prove that r(AB)=r(B), for any B nxp, and show that for any invertible mxm matrix P, there exists Q mxn with full rank such that A=PQ...
##### All are mcq Which of the following is NOT true about resisting popular culture? * O...
all are mcq Which of the following is NOT true about resisting popular culture? * O d. Cultural politics are rarely a factor in choosing to resist a form of popular culture. O c. It is not really possible to resist exposure to popular media. a. Some people refuse to engage in particular forms o...
##### Graph the potential energy function (with respect to x), U(x), of your oscillator and use this...
Graph the potential energy function (with respect to x), U(x), of your oscillator and use this to give a physical explanation of your observation. U(x) can be directly obtained from the equation of motion (eq (9)). Show clear working for how you derive this....
##### Bill is selling funnel cakes at the county fair
Bill is selling funnel cakes at the county fair. After lunch, he has 2/3 of his original funnel cakes remaining. That evening, when the fair closes, he determines he sold 5/8 of the reaming funnel cakes. What expression can be used to find the fraction of the original funnel cakes Bill sold after lu...