A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant. Historical records show that 10% of the employees suffered lost-time accidents last year. Management believes that aspecial safety program will reduce such accidents to 7% during the current year. In addition, it estimates that 15% of employees who had lost-time accidents last year will experience a lost-time accident during thecurrent year.a. What percentage of the employees will experience lost-time accidents in both years (to 2 decimals)?%b. What percentage of the employees will suffer at least one lost-time accident over the two-year period (to 2 decimals)?Check My Work (2 remaining)%

Let P1 be the percent of lost time accidents in the first year.P1=10%15% of the employees having an…

Answered: A company studied the number of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Ex. 1 A survey of 80 r/s California State University students indicates that 52 of them work. An independent survey of 40 University of California students indicates that 20 of them work. Construct a 95% c.i. for the difference between the overall percent of CSU students who work and the UC percent.
5.
2. A show had an AQH rating of 12.0 among Men and 15.0 among Women. If Women constituted 56 percent of the market (and Men the rest), calculate the overall AQH rating of the show.
4.
24. On-Time Arrivals. The Air Travel Consumer Report is a monthly product of the Department of Transportation's Office of Avi- ation Enforcement and Proceedings. The report is designed to assist consumers with information on the quality of services provided by the airlines. Following are the percentages of on-time arrivals for June 2013 by the 16 reporting airlines. 93.1 87.5 77.9 77.3 76.1 73.8 73.0 72.5 71.1 70.6 69.8 69.6 69.0 66.0 65.9 61.8 a. Identify the classes for grouping these data, using cutpoint group- ing with classes of equal width 5 and a first lower class cutpoint of 60. b. Identify the class midpoints of the classes found in part (a). c. Construct frequency and relative-frequency distributions of the data based on your classes from part (a). d. Draw a frequency histogram of the data based on your classes from part (a). e. Round each observation to the nearest whole number, and then construct a stem-and-leaf diagram with two lines per stem. f. Obtain the greatest…
Suppose that if an adult falls in the bottom 5% of the distribution of the amount of blood of adults, that person is considered anemic. What is the most amount of blood the adult may have and still be considered anemic?
A friend of yours tells you that they heard that 65% of all college athletes end up losing a finger or toe in their college athletic career. You're highly skeptical of this, but your not sure if that percentage is an over exageration or an under exageration. You survey 101 former student-athletes and find that 60 of them lost a digit during their college athletic career. Is this enough evidence to conclude that the true percentage of student-athletes that lose a digit during their collegiate career is really different from 65%?
Preferred Investment Instrument Survey A survey of a random sample of 450 workers asked them to identify their preferred investment instrument for retirement saving products. a. Company pension fund b. Retirement annuity С. Unit trust linked funds d. Properties е. National lottery The survey found that 58% selected a company pension fund, 22% chose the retirement annuity, 10% chose unit trust linked funds, while 8% believed properties were the best option and the remainder selected the national lottery as the way to save for retirement. The aim of the study is to describe the opinions of all workers' views in South Africa. The survey also collected the saving values of the 450 workers and complied the following numeric frequency distribution table: Saving Values Frequency R 500 to less than R1 000 120 R1 000 to less than R1 500 98 R1 500 to less than R 2 000 180 R2 000 to less than R2 500 32 R2 500 to less than R3 000 20 Source: Lai, K. (2020)
9. In 2016 an online poll was conducted regarding the results of the 2016 NBA All-Star Dunk Contest. The poll asked 100,000 people, "Who [do you think] won the dunk contest?". The results are shown in the relative frequency table below Response Percentage Aaron Gordon 55% Zach Lavine 45%
1. The percentage of 12- to 17-year-olds who reported talking at least once in the past year with their parents about the dangers of drug, tobacco, or alcohol is 60% nationally. A state youth council believes this proportion is higher in their state, where there has been an intense media campaign about this issue. A survey of randomly chosen students from across the state shows 1032 of 1642 students reporting they are having these conversations with their parents. Is there evidence that the percent of students using drugs, tobacco or alcohol in this state is above the national rate?
3.How many Instagram followers does a typical celebrity have?
The "(Subject Matter )" that best describe this Gauguin painting is? O Folklore O Imaginative O Historical C %23 &. 4. 6. 7. 9. y * CO o o o o

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