Statistics Solutions

[Solution] A research firm conducted a survey to determine the mean amount steady smokers spend on cigarettes during the week. They found the distribution

Question: A research firm conducted a survey to determine the mean amount steady smokers

spend on cigarettes during the week. They found the distribution amounts spent per

week followed a normal distribution with a standard deviation of $5.00. A sample of 49

steady smokers revealed that x bar = $20.

. What is the point estimate of the population mean? What does it indicate

. Using the 95% level of confidence, determine the confidence interval for \(\mu \) .

What does this indicate?

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