Business, 08.10.2019 03:30 Branci5125
The average annual cost of the first year of owning and caring for a large dog is $1,843 (us news and world report, september 9, 2013). the irish red and white setter association of america has requested a study to estimate the annual first-year cost for owners of this breed. a sample of 50 will be used. based on past studies, the population standard deviation is assumed known with σ = $255. what is the margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for this breed (to 2 decimals)?
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