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BestCoffeeInTown is concerned that the mean wait time of customers for a table is not greater than 7 minutes. It can be assumed that the population standard deviation is 2.8 minutes based on past experience. A sample of 300 customers is selected and the sample mean is 7.6 minutes. Using a level of significance of .01, is there evidence that the population mean wait time is greater than 7 minutes? Fully explain your answer.
find the length and width of the given rectangle using the area and the relation of length and width.find the length
the area of a rectangular computer lab is 660ft squared, and the width is 22ft. what is the length of the computer lab?
One of the 4 bus drivers is also randomly selected. Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y.
Numerical Concepts : Definitions, Please explain or define these concepts. 1. Natural number 2. Multiplication 3. Subtraction 4. Closure for addition
A ball is kicked upward with an initial velocity of 56 feet per second. The ball's height h (in feet) can be expressed as a function of time t (in seconds) by the equation h = -16t2 + 56t. How much time does the ball take to reach its highest poin..
Solve the system of equations by the substitution method. State whether equation is independent, dependent, or inconsistent.
what is the volume of the largest rectangular parallelepiped which can be inscribed in the ellipsoid x^2/9 + y^2/16 + z^2/36 = 1?
A certain bacteria population is known to doubles every 90 minutes. Suppose that there are initially 80 bacteria.
A rocket accelerates straight up from rest with a constant acceleration of 400 m/s2. How long will it take the rocket to reach an altitude of 16,200 meters?
Use your calculator to evaluate the integral correct to five decimal places.
The school's graduates find jobs in their chosen field within a year after graduation. Find the probability that among 5 randomly selected graduates, at least one finds a job in his or her field within a year of graduating.
part anbsp1. the degreev of a pendant vertex may be either one or zero.nbspnbspnbspnbspnbsp tnbsp ornbsp fnbsp2. a tree
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