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It was suggested that five is the minimum number of data points for the least likely cate gory in constructing histograms. In many cases, however, we must estimate probabilities that are extremely small or for which relatively few data are available. In the example about machine failures at the beginning of the chapter (pages 356-357), suppose that we had one day out of 260 in which three failures occurred. What do you think we should do in such a situation?
Determine whether the coefficient of correlation in the population is zero. Construct and interpret confidence intervals and prediction intervals for the dependent variable, number of units sold.
Create a 90% confidence interval for mean score on this placement exam for all students.
it is estimated that 3.6 of the general population will live past their 90th birthday. in a graduating class of 733
mcdonalds waiting times. you want to estimate sd for the population of waiting times at mcdonalds drive up windows. you
The relationship between current assets and current liabilities is important in evaluating a company's
the probability of a successful missile launch is 0.9. test launches are conducted until 3 successful launches are
A sequence of n independent sample pH determinations will be made. Suppose each sample pH is a random variable with expected value m and standard deviation .1.
determine whether each of the distributions given below represents a probability distribution. justify your
in 2011 the price of a business math text rose to 98. this is 11 more than the 2010 price. what was the old selling
The use of linear regression is a critical tool for a manager's decision-making ability. Please carefully read the example below and try to answer the questions in terms of the problem context.
If you want to provide a warranty so that only 2% of CD player will be replaced before the warranty expires, what is the time length of the warranty? c) What is p67?
suppose that the amount of time between consecutive surges in an electricity network has an exponential distribution
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