Suggest mean locksmith service charge in the city

Reference no: EM131432373

Marketing and Consumer Behavior

Many people live under a lot of stress and various time constraints. Consequently, some people run out of the house without the keys, and are locked out. Rather than break into one's own home, most people in these circumstances call a locksmith.

In 2013, the mean service charge for a locksmith was $68. A random sample of 26 locksmith service charges in Black Springs, Arkansas, was obtained. The sample mean was $72.35.

Assume the underlying population distribution is normal and that σ = 15.5. Is there any evidence to suggest the mean locksmith service charge in this city is greater than $68? Use a = 0.05.

Reference no: EM131432373

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