MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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- A particular fruit's weights are normally distributed, with a mean of 228 grams and a standard deviation of 20 grams. The heaviest 4% of fruits weigh more than how many grams? Give your answer to the nearest gram.arrow_forwardThe results of a common standardized test used in psychology research is designed so that the population mean is 175 and the standard deviation is 10. A subject earns a score of 183. What is the z-score for this raw score?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
- in a test of a lifelong brand of tires , a survey revealed that the mean life was 35,000 mikes and the standard deviation was 7083 mikes. if the shape of the population distribution is known to be normal, approximately what percentage of the tires lasts less than 20834 miles ?arrow_forwardIt takes an average of 9.1 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 49 injured patients to immediately tell the truth about the injury and noticed that they averaged 8 minutes for their blood to begin clotting after their injury. Their standard deviation was 3.31 minutes. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Hint: Ho: ? H₁: ? Select an answer Select an answer C c. The test statistic? is -2.326. Enter it here d. The p-value is 0.0121364015. Enter it here e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) The data suggest the populaton mean is…arrow_forwardA 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_forward
- A particular fruit's weights are normally distributed, with a mean of 777 grams and a standard deviation of 9 grams.The heaviest 10% of fruits weigh more than how many grams?Give your answer to the nearest gram.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_forwardIt has been reported that the variance of the speeds of drivers on the Turnpike near Somerset, PA is 64 for all vehicles. A driver who was pulled over near Somerset on the pike feels that value is incorrect and conducts a 4. survey of speeds. He finds that the standard deviation of 50 vehicles is 10.5 mph. At a 0.05, is the driver correct? %3Darrow_forward
- A particular fruit's weights are normally disturbed, with a mean of 415 grams and a standard deviation of 17 grams. The heaviest 11% 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 465 grams and a standard deviation of 15 grams. The heaviest 17% 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 308 grams and a standard deviation of 19 grams.The heaviest 15% of fruits weigh more than how many grams?Give your answer to the nearest gram.arrow_forward
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