Suppose a Research Firm Conducted a Survey to Determine the Average

question 8

Multiple Choice

Suppose a research firm conducted a survey to determine the average amount of money steady smokers spend on cigarettes during a week. A sample of 100 steady smokers revealed that the sample mean is $80 and the sample standard deviation is $20. What is the probability that a sample of 100 steady smokers spend between $76 and $84?

• A) 0.4772
• B) 0.0228
• C) 0.9544
• D) 0.3400
• E) 0.9999

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Definitions:

Hook to Latch Clearance

Hook to latch clearance refers to the distance or space between a hook and latch mechanism, critical in ensuring a secure fit and operation of closures in vehicles.

Pintle Hook Assembly

A type of towing hitch that uses a hook and loop design, commonly found on military and heavy equipment trailers.

Hydraulic Snubbers

Devices used in piping systems to control sudden shock and vibration by restricting fluid flow in response to rapid changes.

Pneumatic Snubbers

Devices in pneumatic systems that dampen sudden movements or shocks by restricting airflow, typically used to protect against damage from rapid actuations.