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If 200 of the adults surveyed were in the age category of 24 and under and they provided a standard deviation of $14.50, construct a 95% confidence interval for the weekly average expenditure on fas
Explain to Ellen how to find what speed her new train must go to be the second fastest in this group. Then, find an appropriate speed for Ellen's train in miles per hour and use the formula distance
If the height of the basketball hoop is 10ft the angle of elevation between Claire and the goal is 35°, and the angle of elevation between Marisa and the goal is 25°, how far apart are they
For the given data, compute v=ln y and u =ln x, plot the points (u,v) Compute the constants m and b such that v=mu+b then using log-log plot of y and x, determine the constant such that y=a*x^m.
Use the f'(x)= lim (h-0) f(x + h) - f(x)/h to find f'(x). b-) Find the domain of f'. c) Find and equation of the tangent line to the graph of f at P. d) Find the points on the graph a which the tang
Compute the average rate of change of y with respect to x on given interval.(b) Determine the instantaneous rate of change of y with respect to x at left endpoint of the interval.
A balloonist drops a sandbag from a balloon 160 feet above the ground. After t seconds, the sandbag is 160 -t^2 feet above the ground. Find the velocity of the sandbag at t = 1.
Displacement with constant acceleration, in a scientific test conducted in Arizona, a special cannon called HARP shot a projectile straight up to an altitude of 180.0 km. if the projectiles initial s
A poll of 490 college students illustrated that 33% of them had, or intended to, cheat on examinations. Find margin of error for 95% confidence interval.
Find the probability he did not receive any e-mail during this period? Find probability her eceived ten or more e-mails during same period?
Commission rate would drop to 13%. what value of sales does she require to make in week to be better off on retainer basis?
Determine whether each of the following is counted in the M1 measure of the money supply:
Consider a scheduling problem, where there are five activities to be scheduled in four time slots. Suppose we represent the activities by the variables A, B, C, D, and E, where the domain of each va
Six ounces of alcohol are added to each quart of Burbo's Better and 3 ounces are added to Burbo's Best. Provide LP Model and use both graphical method and Excel to find optimal solution.
Explain (in your own words) the difference between zero divided by seven and seven divided by zero. Show a way of writing these two problems using mathematical symbols for division. Don't forget to
Suppose you're tutoring a classmate in four algebraic processes. Define each process and provide an example of each.
If competing cinema reduced its prices by 10%, how would you expect action to affect demand at Crown? How must cinema determine the optimal ticket price?
A mean F index of 9.5 with standard deviation of 0.8. Create and interpret 95% confidence interval for mean F index for all books by horror author.
Determine the mass of a wire formed by the intersection of sphere x^2 + y^2 + z^2 = 1 and the plane x + z=0 if the density of a wire is x^2?
Find population proportion of American school children who would answer given question correctly. Determine a sample size which would give margin of error of 0.03 with 90% confidence.
Determine the 99% confidence level for the mean number of hours that population of high school students spent working each week?
Suppose the standard deviation of 0.3 minutes, Create the interval estimate with the confdience level of 95% break.
A rush order is received for 600 cars and 300 trucks. How many vehicles of each kind must each plant produce to fill order at the least cost?
A material has a strength coefficient K=100,000psi, a strain hardening exponent n=0.2, a yeild strenght approximatel equal to its proportional limit at 25000psi, and E=125,000psi.
She earns $8 per hour as installer and $5 per hour as demonstrator. How many of each kind of alarm must she install and show to maximize her income?