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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The mean household income,in dollars,must be estimated for a town that is divided into three districts.The relevant information is shown in the table.
A 95% confidence interval for the population mean that extends $550 on each side of the sample estimate is required.
-A questionnaire was mailed to 1000 registered municipal voters selected at random.Only 600 questionnaires were returned,and of the 600 returned,450 respondents were strongly opposed to a surcharge proposed to support the city's Parks and Recreation Department.Can the 75% figure be accepted as a valid estimate of the percentage in the city who are opposed to the surcharge?
Dark-Skinned Individuals
Persons with a higher concentration of melanin in the skin, which can affect the clinical diagnosis of conditions like anemia or petechiae.
Oral Mucosa
The mucous membrane lining the inside of the mouth, which can be a site of absorption for certain medications or a location for various diseases.
Satisfactory
Adequate or meeting the basic requirements; acceptable though not outstanding or excellent.
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