True percentage of msds
Give a 95% confidence interval for the true percentage of MSDS that are satisfactorily completed.
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The poll claims that the 70% of the population is for a new amendment. A random sample of 49 people showed that 27 voted in favor of the new amendment. Give a 95% confidence interval.
The average cost of tuition, room and board at the small private liberal arts colleges is reported to be $8,700 per term and population standard deviation of $900, but financial administrator thinks that the average cost is higher. A study conduct
Now suggest the mean xbar of the scores of 60 randomly select students. If xbar = 1060, what percentile of the sampling distribution of xbar is this? _____ %
And the standard deviation? (±0.001) Employ the central limit theorem to find the probability (±0.01) that the average number of moths in 60 traps is greater than 0.4:
Determine the probability that the flight can't accommodate all passengers who show up? Determine the probability that the flight departs with 10 or more empty seats?
At a certain college, there were 600 science majors, 200 engineering majors, and 500 business majors. If the student is chosen at random, determine the probability that the student is an engineering major?
The median can be a more appropriate measure of central tendency than the mean if the distribution of the data is extremely skewed. A. false, B. true, C.
In a study of elephants a researcher wishes to find out the average weight of a certain subspecies of elephants. From previous studies, the standard deviation of the weights of elephants in this subspecies is known to be 1500 pounds.
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