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Find the indicated probability. Round to three decimal places.
An airline estimates that 90% of people booked on their flights actually show up. If the airline books 71 peopleon a flight for which the maximum number is 69, what is the probability that the number of people who show up will exceed the capacity of the plane?
While dealing with 16 students, suppose that the alternative hypothesis has been one-sided and that it was set as Ha :
The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:
A market researcher is interested in knowing the type of training that works best for DVD users. Thirty consumers are randomly selected from a population of known DVD owners (i.e., users).
Make a relative frequency histogram by using ten-point intervals to show the distribution of the scores.
Findout the percentage of trainees earns less than $900 a month utilizing normal distribution.What percentage of trainees earns less than $900 a month?
The carpeting department supervisor claims that the average number of days between the receipt of a complaint and its resolution is 20 days or less.
Create a 90 percent confidence interval for the population proportion of all such firms with this as the primary motivation.
At the significance level 0.01 is there sufficient evidence to conclude that a difference exists in the mean time required for the elimination of the rash?
In a distribution of scores, the arithmetic mean is 51, the median is 55, and the mode is 62. What is the score, in percentile form, of a subject who does less well than two-thirds of the sample?
At 0.05 level of significance, is there evidence of noteworthy difference in variation in sales among different aisle locations?
An assembly line turns out 10% deffectives. Determine an acceptance number and sampling plan for samples of size 14 and a producers risk of 3%. (AQL = 10)).
An important idea in data interpretation is choosing which graph to use under which circumstances. Describe the benefits of different graphs for different sets of data:
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