Q&A: A manufacturer of plastic bags is ready to make a recall.?

Question by : A manufacturer of plastic bags is ready to make a recall.?

A manufacturer of plastic bags is ready to issue a recall of their product if more than 3.8% of them are defective. They examine 478 of their bags, and of those 478 bags, 12 of them are found to be defective.

What is the test statistic z-value of this study?
Please please please help me i have no idea how to do this!

Best answer:

Answer by Aaron
Well, your sample proportion, p-hat, is 12/478 = .0251.
The z-score for this would be calculated with z = (p-hat – hypothesized p)/(stdev)
The stdev for the sampling distribution of sample proportions is ?((p-hat*q-hat)/n), where q-hat = 1 – p-hat.
So, z = (.0251 – .038)/?((.0251)(.9749)/478) = -1.80

What do you think? Answer below!

Assume that you are suing the manufacturer. Discuss for which tort you would sue: negligence, strict liability?

Question by heavens d: Assume that you are suing the manufacturer. Discuss for which tort you would sue: negligence, strict liability?

Product: Arizona Newborn and Infant Denim Pants

According to the United States Consumer Product Safety Commission(CPSC). A product recall had been released on November 25, 2008, Release #09-056 that a recall on J C Penney Co Arizona Newborn and Infant Denim Pants manufactured in Bangladesh in sizes from 0-9 months were found to be hazardous because the metal snap at the waist could detach posing a choking hazard to infants. The recall involves Arizona brand newborn and infant girls and boy’s denim pants. Only those pants made in Bangladesh are affected; pants made in China are not included in the recall. There have not been any Incidents/Injuries reported thus far

Best answer:

Answer by meeomyo
Neither they spotted the problem before it became an issue and have tried to correct it.I see no basis for a law suit.

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