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The parallelogram linkage shown moves in the vertical plane with the uniform 8-kg bar EF attached to the plate at E by a pin which is welded both to the plate and the bar. A torque is applied to link AB through its lower pin to drive the links in a clockwise direction. When theta reaches 60 degrees, the links have an angular acceleration and an angular velocity of 6 rad/s2 and 3 rad/s, respectively. For this instant calculate the magnitudes of the force F and torque M suppored by the pin at E.
What is the probability that exactly 7 cabinets are defective? What is the probability that there are more than 8 defective file cabinets?
Is there sufficient evidence to conclude that the mean number of transactions per customer is more than 10 per month? Could the advertising agency say the mean is more than 9 per month?
They find that these 100 people lost an average of 38 hours with a standard deviation of 9.5 hours. What is the P-value for this significance test?
At the 10% level of significance, is there sufficient evidence to indicate that more books are being loaned out per day, on the average?
question a company is having a new corporate website developed. in the final testing phase the download time to open
By using the fact that Martha believes the treatment will decrease the amount of time to fall asleep, describe the null and alternate hypotheses.
A South American custom candy producer wants to know if the mean daily consumption of regular sugar sweetened candy eaters is less than that of artificial sweetened candy eaters.
suppose we select an srs of size n 100 from a large population having proportion p of successes. let p be the
Describe the methods for interpretation of categories (row or column) in CA. Can categories always be directly compared based on proximity in the perceptual map?
Discuss some of the advantages and disadvantages of the WHO protocol versus the single test. Give the assumptions that you have made in carrying out calculations.
Assume that the histogram of the data is approximately bell-shaped. Approximately how many of the 260 students had sleep times between 355 minutes and 455 minutes per night?
using a normal curve table give the percentages of scores between the mean and a z-score ofa 0.56b 0.57c 1.46d 1.56e
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