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The average waiting time per customer at a fast food restaurant has been 7.5 minutes. The customer waiting time has a normal distribution. The manager claims that the use of a new cashier system will decrease the average customer waiting time in the store. Based on a random sample of 16 customer transactions, the mean waiting time is 6.3 minutes and the standard deviation is 2 minutes per customer. What is the value of the test statistic we would use to test Ho?
A) t = -2.4 B) t = -1.2 C) t = -0.6 D) t = 2.4 E) z=-2.4
A rectangular building lot measures 295 ft. by 438 ft. Find the number of acres in the lot. Round to two places after the decimal. Show all steps taken to find the solution.
the temperature at the pool was 65 degrees F at 6:00 a.m. write an expression to name the tempertaure at 5:00 p.m. after it rose 7 degrees.
For the two acute angles, m1=6x -3° and m2 =x + 2°. Solve for x and the measure of each angle. State the ideas from the tool kit that justify the procedure you use.
A coin is biased to show 38% heads and 62% tails. The coin is tossed twice. What is the probability that the coins turns heads on the second toss?
leading economic indictators: the value of the conference board index of 10 economic undicatators in the U.S could be approximately by the following function of time t in months since the end of december 2002.
Find the value of "a" that makes the following function differentiable at x = 2.
The angle of elevation to the top of a building from a point on the ground is 39 degrees. From a point 50 feet closer to the building, the angle of elevation is 45 degrees. What is the height of the building?
Please explain how to find the equations of the tangent line and the normal line to the graph of the equation at the indicated point and achieve the specified answer.
Describe the shape of the histogram. The probability that there are five first-shift workers. The probability that there are four second-shift workers.
Tami goes shopping for a snow blower. She knows nothing about snow blowers. She is equally likely to decide on any of the choices available to her. The snow blower choices are a 5-horsepower and a 10 horse power model, and each is available with a..
What is the boundaries of each value a. 42.8 Miles b. 1.6 milliliters c. 5.36 ounces d. 18 tones e. 93.8 ounces f. 40 inches
Task: Apply curve-fitting techniques and interpret the results. As such, your work will include doing scatterplots, determining the equation and graph of the curve on the scatterplot, finding the r^2 value,
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