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Question: Authors of a computer algebra system wish to compare the speed of a new computational algorithm to the currently implemented algorithm. They apply the new algorithm to 50 standard problems; it averages 8.16 seconds with standard deviation 0.17 second. The current algorithm averages 8.21 seconds on such problems. Test, at the 1% level of significance, the alternative hypothesis that the new algorithm has a lower average time than the current algorithm.
To test the given claim using Single Proportion Z test.
a trucking company determined that the distance traveled per truck per year is normally distributed with a mean of
Marketing has identified an error in their initial estimate that would increase the overall cost of advertising by $100,000 per year.
On the basis of these results, do you think retailers and consumers have a right to complain to the manufacturers? Why?
suppose you want to sample the music of a band you havent heard before. youre given 5 cds each with 12 tracks. youll
Non-response rates of 5-15 per cent are often quoted for random sample interviewer surveys, why are figures not quoted for quota surveys? Which of the five types of non-response are relevant for quota surveys?
For 95% confidence and a margin of error of $100, how many apartments should the friend randomly sample from the local newspaper?
The "Visit Europe" travel agency specializes in arranging trips to European cities. A customer, Judy, is interested in information on three cities:
in the united states a full-time employee works an average of 40 hours a week with a standard deviation of 2.5 hours
Describe whether the requirements of disability eligibility under ADA and ADAAA are applicable in this circumstance, and discuss whether
Traveling Salesman Problem/Triangle Inequality) Consider a symmetric traveling salesman problem where the arc costs are nonnegative and satisfy the following triangle inequality:
The same is true for only 60 of 300 female Engineering majors. Find a 90% confidence interval for the difference in proportions of men and women Engineering majors who got such jobs?
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