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A manufacturing firm just received a shipment of 45 assembly parts, of slightly varied sizes, from...
A manufacturing firm just received a shipment of 15 assembly parts, of slightly varied sizes, from...
A manufacturing firm just received a shipment of 15 assembly parts, of slightly varied sizes, from a vendor. The manager knows that there are only 12 parts in the shipment that would be suitable. He examines these parts one at a time. a. Find the probability that the first part is suitable. (Round your answer to 2 decimal places.) Probability:_______ b. If the first part is suitable, find the probability that the second part is also suitable. (Round your answer...
Amanufacturer of computer printers purchases plastic ink cartridges from a vender. When a large shipment is...
Amanufacturer of computer printers purchases plastic ink cartridges from a vender. When a large shipment is received, a random sample of 235 cartridges is selected, and each cartridge is inspected. If the sample proportion of defective cartridges is more than 0.02, the entire shipment is returned to the vendor. (a) What is the approximate probability that a shipment will be returned the true proportion of defective cartridges in the shipment is 0.007 (Round your answer to four decimal places.) (b)...
The following sample data reflect shipments received by a large firm from three different vendors and...
The following sample data reflect shipments received by a large firm from three different vendors and the quality of those shipments. (You may find it useful to reference the appropriate table: chi-square table or F table) Vendor Defective Acceptable 1 18 117 2 26 66 3 33 248 a. Select the competing hypotheses to determine whether quality is associated with the source of the shipments. H0: Quality and source of shipment (vendor) are independent.; HA: Quality and source of shipment...
The following sample data reflect shipments received by a large firm from three different vendors and...
The following sample data reflect shipments received by a large firm from three different vendors and the quality of those shipments (You may find it useful to reference the appropriate table: chi-square table or table) Vendor DefectiveAcceptable 20 25 24 116 67 255 a. Select the competing hypotheses to determine whether quality is associated with the source of the shipments H: Quality and source of shipment (vendor) are independent; Ha: Quality and source of shipment (vendor) are dependent. Ho: Quality...
Suppose you first received a shipment of six televisions. Four of the televisione are detective Itwa...
Suppose you first received a shipment of six televisions. Four of the televisione are detective Itwa televisions are randomly selected compute the probably that both televisions work. What is the probability at least one of the two television does not work? The probability that both televisions work is Round to three decimal places as needed The probability that at least one of the two televisions does not work is (Round to three decimal places as needed) Enter your answer in...
Higbee Manufacturing Corp. has recently received 5 cases of a certain part from one of its...
Higbee Manufacturing Corp. has recently received 5 cases of a certain part from one of its suppliers. The defect rate for the parts is normally 5%, but the supplier has just notified Higbee that one of the cases shipped to them has been made on a misaligned machine that has a defect rate of 97%. So the plant manager selects a case at random and tests a part. a. What is the probability that the part is defective? b. Suppose...
An office manager has received a report from a consultant that includes a section on equipment...
An office manager has received a report from a consultant that includes a section on equipment replacement. The report indicates that scanners have a service life that is normally distributed with a mean of 45 months and a standard deviation of 6 months. On the basis of this information, determine the proportion of scanners that can be expected to fail in the following time periods: Use Table A and Table B. a. Before 36 months of service. (Round z values...
please help with p values! with 0.45 0.30 0.15 for different sample sizes. In parts (a)-(c,...
please help with p values!
with 0.45 0.30 0.15 for different sample sizes. In parts (a)-(c, use Statkey or other technology to find the p-value. Click here to access StatKey a2045d0.30 and 26 Round your answer to two decimal places. p-value 0.03 Are the results significant at the 5% level? A 90 (b) Pi = A 60 = = 0.45 and = 0.30 200 200 Round your answer to three decimal places. p-value0.03 Are the results significant at the 5%...
Assembly Time: In a sample of 45 adults, the mean assembly time for a child's swing...
Assembly Time: In a sample of 45 adults, the mean assembly time for a child's swing set was 1.79 hours with a standard deviation of 0.78 hours. The makers of the swing set claim the average assembly time is less than 2 hours. Test their claim at the 0.10 significance level. (a) What type of test is this? This is a left-tailed test.This is a right-tailed test. This is a two-tailed test. (b) What is the test statistic? Round your answer...
The percent defective for parts produced by a manufacturing process is targeted at 4%. The process...
The percent defective for parts produced by a manufacturing process is targeted at 4%. The process is monitored daily by taking samples of sizes n = 160 units. Suppose that today’s sample contains 14 defectives. Determine a 88% confidence interval for the proportion defective for the process today. Place your LOWER limit, rounded to 3 decimal places, in the first blank. For example, 0.123 would be a legitimate answer. Place your UPPER limit, rounded to 3 decimal places, in the...
Amanufacturer of computer printers purchases plastic ink cartridges from a vender. When a large shipment is received, a random sample of 235 cartridges is selected, and each cartridge is inspected. If the sample proportion of defective cartridges is more than 0.02, the entire shipment is returned to the vendor. (a) What is the approximate probability that a shipment will be returned the true proportion of defective cartridges in the shipment is 0.007 (Round your answer to four decimal places.) (b)...
The following sample data reflect shipments received by a large firm from three different vendors and the quality of those shipments (You may find it useful to reference the appropriate table: chi-square table or table) Vendor DefectiveAcceptable 20 25 24 116 67 255 a. Select the competing hypotheses to determine whether quality is associated with the source of the shipments H: Quality and source of shipment (vendor) are independent; Ha: Quality and source of shipment (vendor) are dependent. Ho: Quality...
Suppose you first received a shipment of six televisions. Four of the televisione are detective Itwa televisions are randomly selected compute the probably that both televisions work. What is the probability at least one of the two television does not work? The probability that both televisions work is Round to three decimal places as needed The probability that at least one of the two televisions does not work is (Round to three decimal places as needed) Enter your answer in...
An office manager has received a report from a consultant that includes a section on equipment replacement. The report indicates that scanners have a service life that is normally distributed with a mean of 45 months and a standard deviation of 6 months. On the basis of this information, determine the proportion of scanners that can be expected to fail in the following time periods: Use Table A and Table B. a. Before 36 months of service. (Round z values...
please help with p values!
with 0.45 0.30 0.15 for different sample sizes. In parts (a)-(c, use Statkey or other technology to find the p-value. Click here to access StatKey a2045d0.30 and 26 Round your answer to two decimal places. p-value 0.03 Are the results significant at the 5% level? A 90 (b) Pi = A 60 = = 0.45 and = 0.30 200 200 Round your answer to three decimal places. p-value0.03 Are the results significant at the 5%...
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