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The daily catch of a small turn-fishing fleet from ocean foods company has averaged 130 tons over the last few years, with a standard deviation of 42 tons. The probability that during a sample of four (4) fishing days, the weight of the daily catch will be between 109 tons and 151 tons is
A 0.3830B 0.6170C 0.6826D 0.8413E cannot be determined unless the weight of the daily catch is normally distributed.
National data show that, on average, college freshman spend 7.5 hours a week going to parties. President DeRosa doesn't believe that these figures apply at his school; he thinks freshman at his school party less.
At the .01 significance level, is there a difference in the use of the four entrances?
You had calculated the following measures of central tendency: the mean, the median, and the mean trimmed 25%. Which of these measures of central tendency will change when you correct the recording error?
A sample has just been taken with the following lengths: 21.25, 22.0, 21.5, 20.75, 21.25, 21.35, 21.35, 21.35, 21.35, 21.35, 21.35, and 21.35. Is the new seamstress performing at an acceptable quality level?
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. Determine the cumulative distribution function of flange thickness.
In a large western university, 15% of the students are graduate students. If a random sample of 20 students is selected, what is the probability that the sample contains:
can we conclude that the mean assembly time for this component exceeds 3 minutes? What error could be made in this case? Describe it in words.
What is the probability you will have 20 or less flights that are late? What is the probability you will have more than 100 on time?
Find the probability that a standard normal random variable will assume a value between: Find a z such that 70% of the area is above that value.
Discuss the ability of the process to meet the customer's specifications. Also, if the customer seeks Six Sigma compliance, what are your recommendations?
On average, 40 percent of U.S. beer drinkers order light beer. (a) What is the probability that none of the next eight customers who order beer will order light beer?
The Warren County Telephone Company claims in its annual report that "the typical customer spends $70 per month on local and long-distance service.
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