Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
It has been found from past experience that of the articles produced by a factory, 20% come from machine 1, 30% come from machine 2 and 50% come from machine 3. The percentages of satisfactory articles among those produced are 95% for machine 1, 85% for machine 2 and 90% for machine 3.
(a) An article is chosen at random from a lot. What is the probability that it is satisfactory ?
(b) Assuming that it is satisfactory, what is the probability that it was produced by machine 1 ?
Raftelis financial consulting reported that the mean quartely water bill in the US is 47.50. Some water systems are operated b public utilities while other water systems are operated by private companies.
A population proportion is to be estimated. Estimated the minimum sample size needed to achieve a margin of error E=0.01 with a 95% degree of confidence.
IQ scores from the general population form a normal distribution with a μ = 100 and σ = 15. However, data indicate that children's intelligence may be affected if their mothers have German measles during pregnancy.
Determine the expected value of the number guessed by the caller.
The geometric mean is often used in business and economics for finding average rates of change, average rates of growth, or average ratios. Given n values (all positive), the geometric mean is the nth root of their product. The average growth factor ..
The average weekly earnings of the plumbers in a city is (u=$750) with a standard deviation of (SD=$40). Assume that we select a random sample of [n=65 plumber], what is the proability that the sample mean [x bar] will be greater than $740 or greater..
For a set of 15 data points, a computer statistical package has found the multiple regression equation to be y ^ = -23 + 20x_1+ 5x_2 + 25x_3 and has listed the t-ratio for testing the significance of each partial regression coefficient. Using the 0.0..
What are the most common reasons you would select a non-parametric test over the parametric alternative?Discuss the issue of statistical power in non-parametric tests (as compared to their parametric counterparts). Which type tends to be more p..
Empirical Research, Sampling Methods and Reliability - Identify a business research and define the research questions for the identified problem or opportunity
Suppose a geyser has a mean time between eruptions of 61 minutes. Let the interval if time between the eruptions be normally distributed with a standard deviation 16 minutes. What is the probability that a randomly selected time interval between erup..
Examine the hospital database. Suppose you want to “prove” that the average hospital in the United States averages more than 700 births per year. Use the hospital database as your sample and test this hypothesis. Let alpha be .01. On average, do hosp..
Find the indicated probabilities using Poisson distribution. Then determine if the events are unusual. A newspaper finds that the mean of typo error is five. Find the probability that a) exactly for errors found on a page, b)at most for errors ..
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd