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(a) Use a computer program to find the probability that a random variable having the normal distribution with mean 5.853 and the standard deviation 1.361 will assume a value greater than 8.625.
(b) Interpolate in the standard normal distribution table to find this probability and compare your result with the more exact value found in part (a).
The article "Computer Assisted Net Weight Control" (Quality Progress, 1983: 22-25) suggests a normal distribution with mean 137.2 oz and standard deviation 1.6 oz for the actual contents of jars of a certain type.
1*. Suppose that Xi....,Xn is a random sample of size n on X, where X has pdf f(x, = -92 X3e-2218, X> 0, and 0 is a positive parameter.
in the state of florida non-personalized automobile license plates use 7 characters. the first 4 charactersare letters
the probability that a randomly selected person has high blood pressure the event h is ph 0.5 and the probability that
Researchers have determined that patients who are smokers have 18% chance of contracting a serious illness. What is the probability that a given patient if the patient has a serious illness?
Assume that a 95% confidence interval estimate of the population mean annual starting salary is required. What is the planning value for the population standard deviation?
Explain why an observed value of 250 hours is not unusual for an individual light bulb, even though it is outside the confidence interval you calculated.
a farmer believes that the yields of his tomato plaints have a normal distribution with an average yield of 11 lbs and
Briefly describe the shape, location and spread of the distribution of Admissions with appropriate linking to the descriptive statistics.
Explain how cards can be used to generate random numbers. Explain how a pair of dice can be used to generate random numbers.
Define validity and reliability. How can we insure our data is both reliable and valid? Which of these two do you think is the more important?
A bank manager has developed a new system to reduce the time customers spend waiting for teller service during peak hours. The manager hopes that the new system will reduce waiting times from the current 9 to 10 minutes to less than 6 minutes.
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