Data Management
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statistics
please help me on this; In the mass production of bolts it is found that 5% are defective. Bolts are selected at random and put into packets of ten. A packet is selected at random. Find the probability that it contains: A. no
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Harris Fabrics computes its predetermined overhead rate annually on the basis of direct laborhours. At the beginning of the year, it estimated that 37,000 direct laborhours would be required for the periodâ€™s estimated level of
asked by bree on September 8, 2016 
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Before accepting a large shipment of bolts, the director of an elevator construction project checks the tensile strength of a simple random sample consisting of 20 bolts. She is concerned that the bolts may be counterfeits, which
asked by Mary on December 4, 2015 
Statistics
Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective .(you may take the distribution to be Poisson; e4= 0.0183).
asked by Shams on October 26, 2010 
stastics
If 1.5% of the bolts made by an automotive factory are defective, what is the probability that in a shipment of 200 bolts, there are 6 defective bolts? Place your answer, rounded to four decimal places, in the blank.
asked by jen on July 8, 2012 
accounting
Data provided: Estimated manufacturing overhead cost for year....$93,000 Estimated direct labor cost for the year... $75,000 Actual manufacturing overhead cost for the year... $84,000 Actual direct labor cost for the year...
asked by john on July 25, 2010 
Math
A mechanic bought bolts in three sizes the smallest bolts cost 15 cents each the next larger sized bolts cost 20 cents each and the largest sized bolts cost 30 cents each the mechanic spent as little money as possible but spent
asked by Jenny on December 1, 2016 
accounting
Harris Fabrics computes its predetermined overhead rate annually on the basis of direct laborhours. At the beginning of the year, it estimated that 20,000 direct laborhours would be required for the period? estimated level of
asked by sandra on February 27, 2016 
accounting
Logan Products computes its predetermined overhead rate annually on the basis of direct laborhours. At the beginning of the year, it estimated that 38,000 direct laborhours would be required for the periodâ€™s estimated level of
asked by sally on September 8, 2012 
statistics
A random samples of 250 bolts manufactured by machine A and 200 bolts manufactured by machine B showed 24 and 10 defective bolts respectively. Test the hypothesis that the machines are showing difference qualities of performance.
asked by Varun on November 18, 2010