Mathematics, 30.10.2019 00:31 Worksmarter72641
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. a. 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)? b. the datafile setters contains data collected from fifty owners of irish setters on the cost of the first year of owning and caring for their dogs. use these data sets to compute the sample mean (to 2 decimals). using this sample, what is the 95% confidence interval for the mean cost of the first year of owning and caring for an irish red and white setter (to 2 decimals)?
Answers: 3
Mathematics, 21.06.2019 17:30
The train station clock runs too fast and gains 5 minutes every 10 days. how many minutes and seconds will it have gained at the end of 9 days?
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Mathematics, 21.06.2019 21:30
Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.
Answers: 2
Mathematics, 21.06.2019 22:30
Consider an example of a deck of 52 cards: example set of 52 playing cards: 13 of each suit clubs, diamonds, hearts, and spades ace 2 3 4 5 6 7 8 9 10 jack queen king clubs diamonds hearts spades what is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.
Answers: 1
The average annual cost of the first year of owning and caring for a large dog is $1,843 (us news an...
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