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Although airline schedules and cost are important factors for business travelers when choosing an airline carrier ", a USA Today survey found that business travelers list and airline's frequent flyer program as the most important factor. From a sample of 1,993 business travelers who responded to the survey, 700 listed a frequent flyer program as the most important factor. Develop an 99% confidence interval estimate for the population proportion.
what is the relationship between the confidence level and type i
statistical literacy and critical thinkingfor a statistics class project i used a convenience sample but the results
If the opinion poll had announced the margin of error for 80% confidence rather than 95% confidence, this margin of error would be?
A large population of overdue bills has balances that fallow a normal curve. When we take a sample of 100 of these the average is $500 and the standard deviation is $100.
Find the probability that the student will pass the test on the third attempt.
Suppose the first credit union to offer free checking is the 10th selected. Is there any evidence to suggest that the claim (72%) is false? Justify your answer.
How many cities have a population of at least 100,000 but less than 1,000,000? What percentage of cities are in this group?
Assume you invest 20% of your fund of $100 in Stock A and the remaining 80% in Stock B. What is the standard deviation of the total return of your portfolio?
a u chart is to be used to control a corrugated paper product line. end product is produced in rolls of varying
nonparametric procedures are usually not our first choice among statistical procedures becausea. the probability of
tasks are sent to a supercomputer at an average rate of 6 tasks per minute. their arrivals are modeled by a binomial
If peter can keep his grade during whole academic career. What grade he will need to maintain to buy the car at the end.
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