The distribution of heights of adult men in the U.S. is approximately normal with mean 69 inches and standard deviation 2.5 inches. Usewhat you know about a normal distribution and the 68-95-99.7 rule to answer the following.NOTE: If your answer is a percent, such as 25 percent, enter: "25 PERCENT" (without the quotes). If your answer is in inches, such as 10inches, enter: "10 INCHES" (without the quotes and with a space between the number and the INCHES). If your answer is an interval, suchas 14 to 15 inches, then enter: "14 TO 15 INCHES" (without the quotes). Do not use extra zeros and do not include a decimal point unlessyour answer is not a whole number. Your answer must be entered in the correct format.(a) About what percent of men are taller than 69 inches?Answer:(b) Between what approximate heights do the middle 95 percent of men fall?Answer:(c) About what percent of men are between 69 and 74 inches?Answer:

given mean =μ =69standard deviation =σ =2.5

Answered: what you know about a normal…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The U.S. Weather Bureau has a station on Mauna Loa in Hawaii that has measured carbon dioxide levels since 1959. At that time, there were 322 parts per million of carbon dioxide in the atmosphere. In 2005, the figure was 389 parts per million. What is the absolute change in carbon dioxide levels: parts per million % (Give your answer as a percent What is the relative change in carbon dioxide levels: between 0 and 100, not a decimal between 0 and 1. Round to ONE decimal place.)
Students on a campus of a college in Wisconsin were asked about their age. The results of this survey are recorded in the table below. Student ages Frequency 17-26 44 27-36 28 37-46 11 57 and over 33 (a) What is the relative frequency for the age group 17-26? (Write your answer IN PERCENTAGE FORM. Round to at least 2 decimal place. Do not include the % symbol in your answer.) Answer: % (b) What is the relative frequency for the the age group 37-46? (Write your answer IN PERCENTAGE FORM. Round to at least 2 decimal place. Do not include the % symbol in your answer.)) Answer: %
Students on a campus of a college in Wisconsin were asked about their age. The results of this survey are recorded in the table below. Student ages Frequency 17-26 11 27-36 24 37-46 49 57 and over 41 (a) What is the relative frequency for the age group 17-26? (Write your answer IN PERCENTAGE FORM. Round to at least 1 decimal place. Do not include the % symbol in your answer.) Answer: % (b) What is the relative frequency for the the age group 37-46? (Write your answer IN PERCENTAGE FORM. Round to at least 1 decimal place. Do not include the % symbol in your answer.)) Answer: %
Solve the problem. At the Jumping Jack cookie factory, quality assurance inspectors remove broken or otherwise defective cookies from a moving conveyor belt prior to packaging. Based on past studies, the plant manager knows that the inspectors eliminate 98% of the defective cookies at a conveyor belt speed of 9 feet per minute. As the belt speed increases, the factory can produce more cookies per hour, but at the cost of lower quality of the packaged product. Inspectors collect only 60% of defective cookies at a belt speed of 18 feet per minute. QA Inspector Efficiency Inspector efficiency, % defective cookies eliminated 100 90 60 |(9.98) 50- 10 11 12 13 14 15 Belt speed, feet per minute (18,60) 16 17 18 a. Find an equation of the line through the given points. Write the equation in slope-intercept form. Round the slope and y-intercept each to 1 decimal place. b. Use the equation from part (b) to predict the efficiency of the inspectors at a belt speed of 15 feet per minute. Round to…
When a woman thinks she may be pregnant, she often uses an over-the-counter pregnancy test to confirm or deny if she is pregnant. The two-way table below represents the results of one brand of pregnancy test on 500 women, some of whom are pregnant and some are not. Round percentage answers to the nearest tenth of a percent to answer the following two questions. Negative Test Result Positive Test Result (a) What is the sensitivity for this test? % Pregnant 66 131 (b) What is the specificity for this test? % Add Work Check Answer Not Pregnant 239 64
Multiple choice possible answers: A. -0.44 B. 1.64 C. -1.94 D. -2.24 E. 1.96

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