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standard deviation is 6 ounces. at a 95% level how many must be weighed so the average weight will be accurate to within 8 ounces
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descirbe the 4 opssibilities during hypothesis testing and the probabilities of making a type I or II error
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Hi! I need some help with all the assignment question for stats probability.
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if 37% og high school students said that they exercise regularly,find the probability that 5 randomly selected high students will say that they exercise regularly.
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suppose the time interval between two consecutive defective light bulbs from a production line has an uniform distribution over an interval from 0 to 90 minutes what is the probability that the line interval between two consecutive defective lights will be less than 10 minutes
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17. In a management trainee program, 80 percent of the trainees are female, 20 percent male. Ninety percent of the females attended college, 78 percent of the males attended college. A management trainee is selected at random. What is the probability that the person selected is a female who did...
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If you are going to develop an "R" chart based on range statistics and you are using a sample size of 9 for your charting purposes. Which of the following is the lower control limit D3 factor for the chart?
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Operating characteristics formulas for the single-channel queue do NOT require a. Lambda >= Mu. b. Poisson distribution of arrivals. c. an exponential distribution of service times. d. a FCFS queue discipline.
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What factors contribute to a skewed distribution
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If 20 tires are randomly selected what is the probabilty that the mean mileage is at least 75000 miles? this is a normal distribution, the mean is 70000 miles and the standard deviation is 4400 miles.
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