13 4. A ramp is attached to a mover's truck. The ramp is 7 ft long and the truck is 6 ft fromthe bottom of theramp.A diagram of the ramp with dimensions is below.7 ftx6 ftTo the nearest degree, determine the angle that the ramp makes with the ground.Hint: 0 ==adjacenthypotenuse=trig ratio usedRemember you will need to use your inverse function on your calculator to find theangle.

Step 1:The given triangle is a right-angled triangle with an adjacent side (base) of 6 feet and a…

Answered: 13 4. A ramp is attached to a mover's…

Understanding Business

12th Edition

ISBN:9781259929434

Author:William Nickels

Publisher:William Nickels

Chapter1: Taking Risks And Making Profits Within The Dynamic Business Environment

Section: Chapter Questions

Problem 1CE

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The following data set was collected from a survey 60, 56, 46, 55, 42, 43, 57, 46, 49, 56, 55, 59. 49, 41, 52, 53, 46, 51, 54, 43, 41 If a frequency distribution is to be constructed with classes 40-44, 45-49, 50-54, 55-59, and 60-64, what is the frequency of the 40-44 class?
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A wave soldering machine failures follow 3-parameter Weibull distribution with ß = 1.6, n = 800 hours and y = 500 hours. The cost of one PM is $ 6000 and the cost of an unexpected failure is $ 16 000. The machine operates 24 hours/day and PMs are done every three months. Determine the yearly cost for this maintenance schedule.
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A family of mutual funds maintains a service that allows clients to switch money among accounts through a telephone call. It was estimated that 3.2% of callers either get a busy signal or are kept on hold so long that they may hang up. Fund management assesses any failure of this sort as a $10 goodwill loss. Suppose that 2,000 calls are attempted over a particular period. a. Find the mean and standard deviation of the number of callers who will either get a busy signal or may hang up after being kept on hold. b. Find the mean and standard deviation of the total goodwill loss to the mutual fund company from these 2,000 calls.
9.19 In bottle production, bubbles that appear in the glass are considered defects. Any botle that has more than two bubbles is elassified as "nonconforming" and is sent to recycling Suppose that a particular production line produces bottles with bubbles at a rate of 1. bubbles per bottle. Bubbles occur independently of one another. a What is the probability that a randomly chosen bottle is nonconfornming? b Bottles are packed in cases of 12. An inspector chooses one bottle from each case and examines it for defects. If it is nonconforming, she inspects the entire case, re placing nonconforming bottles with good ones. This process is called rectification If the chosen bottle conforms (has two or fewer bubbles), then she passes the cuse. In total, 20 cases are produced. What is the probability that at least 18 of them pass! c What is the expected number of nonconforming bottles in the 20 cases after they have been inspected and rectified using the scheme described in part b?
The following data set was collected from a survey 60, 56,46,55,42,43,57,46,49,56,55,59,49,41,52,53,46,51,54,43,41 If a frequency distribution is to be constructed with classes 40-44, 45-49, 50-54, 55-59, and 60-64 what is the frequency of the 40-44 class
Suppose you are analyzing processing times for a machining operation. In your analysis, you found C, = 2.1 and Cpk = 1.28. Given this information, which of the following sigma levels is the highest that you could claim your process is capable of meeting? O 1 sigma O 2 sigma 3 sigma O 4 sigma 5 sigma O 6 sigma
41.The ______ are (is) used to determine the amount of money that an organization would save if it used a particular test in place of the test it currently uses to select employees. a. Brogden-Cronbach-Gleser formula b. Taylor-Russell Tables c.expectancy charts d. Lawshe tables 42.When the criterion validity coefficient is ____, and the selection ratio is ____, a test will have the most utility in selecting successful employees. a. large / large b. large / small c.small / small d. small / large 43.A test is considered to have _____ if there are race differences in test scores that are unrelated to the construct being measured. a. differential validity b. measurement bias c.selection bias d. adverse impact 44.If the selection rate for any of the protected groups is less than 80% of the…
(c) Based on what we know about Observation B, if the cutoff value is lowered to 0.2, what happens to the values of sensitivity and specificity? Explain. Use the ROC curve to estimate the values of sensitivity and specificity for a cutoff value of 0.2. If required, round your answers to three decimal places. Do not round intermediate calculations. Answer Part C, there are no other parts here. I have the sensitivity already and is equal to 1. What is the specificity??If you are not 100% sure you are right, do not attempt this is frustrating. The cutoff value has changed from 0.5 to 0.2. The sensitivity is 1 which is correct. I need help with the specificity. Sensitivity does not equal 1/14 and specificity does not equal 1/31 so don't answer that and do not answer any other parts just answer part C.

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