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You are employed with Northeast Airlines and have been asked to find out rate of on-time arrivals for four competing airlines at proposed hub location. At present Northeast ranks in top three for on-time arrivals with average on-time arrival rate of 82%. Company wishes to exceed on-time rate of competitors at new hub. Hundreds of flights arrive at location daily. Determine the main advantages and disadvantages of employing sampling in application?
Create a set of n observations from the binomial distribution with 1 trial and the event probability of 0.007, where n is your answer.
Using a significance test, evaluate whether or not there has been a change in the percent of Internet users who download music. Provide all details for the test. (Round your value for z to two decimal places. Round your P-value to four decimal pla..
What information is provided by the numeral value of the Pearson correlation? What is the major distinction between the Pearson and Spear man correlations?
A film alliance used a random sample of 50 U.S. citizens to estimate that the typical American spent 78 hours watching videos and DVDs last year. The standard deviation of this sample was 9 hours.
Suppose that a car rental agency offers insurance for a week that will cost $10 per day. A minor fender bender will cost $1,200 while a major accident might cost 10,000.
find the product of the vector of state probabilities for the preceding period and the matrix of transition probabilities.
Events A and B are mutually exclusive events defined on common sample space. If P (A) 0.5 and P (A or B) = 0.70, determine P (B).
Do you benefit by using a cum sum chart rather than a control chart?
Assume that we know from previous studies that the population mean for minutes of exercise per week for college students is Uu= 100 with a standard deviation =25
Determine marginal probability distributions of X and Y . Compute conditional probability P ( Y = 2 | X = 1)
Formulating null and alternative hypothesis to test the claim averaging about $5000.
Sketch the areas under the standard normal curve over the indicated intervals, and find the specified areas.
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