MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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You measure 27dogs' weights, and find they have a
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- You may need to use the appropriate appendix table or technology to answer this question. Money reports that the average annual cost of the first year of owning and caring for a large dog in 2017 is $1,448. 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 o = $245. 1,902 2,042 1,936 1,817 1,504 1,572 1,532 1,907 1,882 2,153 1,945 1,335 2,006 1,516 1,839 1,739 1,456 1,958 1,934 2,094 1,739 1,434 1,667 1,679 1,736 1,670 1,770 2,052 1,379 1,939 1,854 1,913 2,163 1,737 1,888 1,737 2,230 2,131 1,813 2,118 1,978 2,166 1,482 1,700 1,679 2,060 1,683 1,850 2,232 2,294 (a) What is the margin of error for a 95% confidence interval of the mean cost in dollars of the first year of owning and caring for this breed? (Round your answer to nearest cent.) (b) The DATAfile Setters contains data collected…arrow_forwardA particular fruit's weights are normally distributed, with a mean of 363 grams and a standard deviation of 17 grams.The heaviest 19% of fruits weigh more than how many grams?Give your answer to the nearest gram.arrow_forwardA particular fruit's weights are normally distributed, with a mean of 323 grams and a standard deviation of 7 grams.The heaviest 18% of fruits weigh more than how many grams?Give your answer to the nearest gram.arrow_forward
- A particular fruit's weights are normally distributed, with a mean of 747 grams and a standard deviation of 21 grams.The heaviest 16% of fruits weigh more than how many grams?Give your answer to the nearest gram.arrow_forwardPlease help me with this question.arrow_forwardA successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?arrow_forward
- Butt-to-knee length is approximately normally distributed with a mean of 23.1 inches and a standard deviation of 1.2. Theater seats are designed to be comfortable for as many adults as possible. If the seats are required to fit the middle 80% of the population, the seat must be comfortable for what butt-to-knee length range?arrow_forwardYou measure 31 backpacks' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 3.8 ounces. Based on this, construct a 95% confidence interval for the true population mean backpack weight.arrow_forwardYou measure 48 textbooks' weights, and find they have a mean weight of 66 ounces. Assume the population standard deviation is 11.1 ounces. Based on this, construct a 95% confidence interval for the true population mean textbook weight.Give your answers as decimals, to two placesI am 95% confident that the mean weight of textbooks is between ________ and __________ ounces.arrow_forward
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