Mathematics, 27.10.2020 14:00 leapfroggiez
A research firm conducted a survey to determine the mean amount of money smokers spend on cigarettes during a day. A sample of 100 smokers revealed that the sample mean is N$ 5.24 and sample standard deviation is N$ 2.18 Assume that the sample was drawn from a normal population.
2.1) Find the point estimate of the population mean
2.2) Determine the lower limit of the 95% confidence interval for estimating the unknown population mean.
2.3) Determine the upper limit of the 95% confidence interval for estimating the unknown population mean.
Answers: 2
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Mathematics, 21.06.2019 20:10
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A research firm conducted a survey to determine the mean amount of money smokers spend on cigarettes...
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