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You are a manager of a fast food restaurant. The population mean waiting time to place an order is 4.5 minutes with a population standard deviation of 1.4 minutes. You want to test if the waiting time to place an order has changed from the 4.5 minutes. You select a sample of 49 orders during a one hour period. The sample mean is 5.0 minutes. Use a 0.05 level of significance, and the p-value approach to test if there has been a change in the mean waiting time to place an order.
HO: μ "State the null hypothesis."
HA: μ "State the alternativel hypothesis."
"State the rejection rule"
"Compute the test statistic for the test stated in the problem"
"State if you reject or fail to reject the null hypothesis."
A window is 34 inches wide, and its perimeter is 188 inches. What is the length of the window?
Linear Combinations, Basis and Transformations, 1. Given a basis B = { u1 = [1, 2], u2 = [2, 1] } for R^2, express u = [7, -2] as a linear combination of u1 and u2. How many ways can you do this?
What is the difference between scalar multiplication and matrix multiplication? Give examples of each operation.
paste match sticks above for doding and answer on the three vertices of triangle. you will find number of small triangles in the spectacular triangle.
342 middle school students were asked which cola they preferred, brand X or brand Y. If 28% more students preferred brand Y over brand X, how many of the 342 students preferred brand Y to brand X
A rectangular trench is to be dug which is to be 180 ft long, 90 ft wide and 8 ft deep. A large dump truck can carry 20 cubic yards in a load. How many truck loads will be required to remove the dirt from this trench?
In a study of worker efficiency at Wong Laboratories it was found that the number of components assembled per hour by the average worker t hours after starting work could be modeled by the formula.
use dimensional analysis to convert the quantity to the indicated units. If necessary, round the answr to two decimal places. 1) 70 in. to ft.
What are extraneous solutions of an equation? Why do they sometimes occur in the process of solving rational or radical equations?
1. m mod n will have values ranging fromnbsp 0 to n-1.nbspnbspnbspnbspnbspnbspnbspnbsp t or f2. -39 mod 5 and -38 mod
According to Car and Driver, an Alfa Romeo going 70 mph requires 177 feet to stop. Assuming that the stopping distance is proportional to the square of the velocity, find the stopping distance required by an Alfa Romeo going at 30 mph and at 140 m..
for what initial velocity will one of her free throws go exactly 10 feet? explain? B. what happens to ball for an initial velocity greater than the one in part a? explain?
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