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Which group has the most variability? The least? For Group 1, in what range do most of the scores fall? Group Mean Standard Deviation 1 2.5 .2 2 3.1 1.5 3 4.0 .8 4 3.9 .5
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suppose you just received a shipment of fourteen televisions. two of the televisions are defective. if two televisions are randomly selected, compute the probability that both televisions work. what is the probability at least one does not work?
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This exercise illustrates that poor quality can affect schedules and costs. A manufacturing process has 100 customer orders to fill. Each order requires one component part that is purchased from a supplier. However, typically, 2% of the components are identified as defective, and the components...
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I'm in the field of Procurement Acquisition Field and my question is related to contracting "National cereal manufactures receive high margins for many of their cerals, often ranging from 60-75 percent. By contrast, the large retail grocery chains (Kroger, Safeway, etc.) that...
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what is the probability of -1.23< Z < 2.07
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"The verbal part of the GRE has a mean of 500 and a standard deviation of 100. Use the normal distribution to answer the following questions: a. If we wanted to select only students at or above the 90th percentile, what verbal GRE score would we use as a cutoff? b. What verbal GRE...
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Natalia V. I might have to disregard as I don't have 24 hrs to work with. I have to turn in this assignment tomorrow morning and I want to finish up to night. So if I can't get an answer by tonight plz let me know and I'll come up with something. Again thx
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What is the probability of getting the first questions correct and miss the fourth (with five possible answers to each question)? (You might think of this as, "What is the probability that you get the first question correct and the second question correct and the third question correct...
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a restaurent has 3 sources of revenue:eat-in orders,eat-out orders and at bar.the daily revenue from each source is normally distruted with mean and standard deviation shown in the box below.
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The proportion of individuals insured by the All-Driver Automobile Insurance Company who received at least one traffic ticket during a five-year period is .15. 1. Show the sampling distribution of if a random sample of 150 insured individuals is used to estimate the proportion having received...
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- 1. A school administrator wonders if students whose first language is not English score differently on the math portion of the sat exam than students whose first language is English. The mean SAT math score of students whose first language is english is 516 on the basis of data obtained from the college board. A simple random sample of 20 students whose first language is not English result in a sample mean SAT math score of 522. SAT math score are normally distributed with a population standard deviation of 114. Why is it necessary for SAT math scores to be normally distributed to test the hypothesis?
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