Examlex
Instruction 8-13
A quality control engineer is interested in the mean length of timber poles being cut automatically by machine. The desired length of the insulation is 12 metres. It is known that the standard deviation in the cutting length is 0.15 metres. A sample of 70 cut poles yields a mean length of 12.14 metres. This sample will be used to obtain a 99% confidence interval for the mean length cut by machine.
-Referring to Instruction 8-13,suppose the engineer had decided to estimate the mean length to within 0.03 with 99% confidence.Then the sample size would be________.
Gang Labor
A system of labor, especially in agriculture, where a group of workers is directed and supervised by an overseer, often associated with the antebellum South in the United States.
New World Plantations
Large agricultural estates in the Americas that relied heavily on the labor of enslaved Africans to cultivate crops like sugar, tobacco, and cotton.
West African Slavery
Refers to the historical practice of slave trade and ownership in West Africa, both within African societies and through the transatlantic slave trade to the Americas.
Muslim World
A term generally used to describe regions of the world where Islam is the predominant religion, encompassing a diverse range of cultures, languages, and nations.
Q3: If the population distribution is unknown,in most
Q33: Patients arriving at an outpatient clinic follow
Q41: The standardised normal distribution is used to
Q69: Referring to Instruction 6.8 and assuming that
Q84: Referring to Instruction 9-1,what would be a
Q91: A survey claims that 9 out of
Q93: Referring to Instruction 6.8,which of the following
Q129: A survey claims that 9 out of
Q145: Referring to Instruction 10-7,if you were
Q167: Referring to Instruction 9-1,what critical value should