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The lifetime of a certain battery follows a normal distribution with a mean 274 minutes and standard deviation 20 minutes. We took a random sample of 100 of these batteries. What is the probability that the sample mean of the lifetime will be less than 270 minutes?
Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- If affirmative action programs are dropped, then if new programs are not created, then minority applicants will suffer.
What are some situations in which a census would be better than a sample? Why are samples usually employed rather than censuses?
Was it evidence of a problem in the area, or was it a chance? Can you verify this? Would Binomial or Poisson distribution be suitable for modeling this case?
Choose a business or organizational problem that you may be able to solve with Quantitative Analysis techniques. Do a survey of literature on your topic or problem and include that in the paper (2 to 3 sources- you may use articles that are post..
define externalities in consumption and production of goods and services. why do they occur? what are examples of
Find the mean and standard deviation of the drive variable by using=average(A2:A36) and =stdev(A2:A36). Assuming the variable is normally distributed
What is the probability that an order is delivered within Bobby Pizza's quoted 35 minutes?
Suppose that you wanted to study children who have Down syndrome.- How might you use cluster sampling to obtain a probability sample of children with Down syndrome in your state?
Verify that the 0.95 confidence interval for the slope is (0.14, 0.17). Would you reject H0 :β1 = 0? Based on this confidence interval only, can you be reasonably certain that generally, as X increases, Y increases as well?
Can someone explain to me in detail what earnings per share signify, and why it is important when assessing a company's profitability?
What is the difference between the mean and the median? Which would you use as a descriptive statistic with a skewed distribution?
a commuter has two vehicles one being a compact car and the other one a minivan. three times out of four he uses the
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