MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Approximate the
Data | Frequency |
---|---|
60 - 64 | 1 |
65 - 69 | 2 |
70 - 74 | 5 |
75 - 79 | 11 |
80 - 84 | 21 |
85 - 89 | 15 |
90 - 94 | 12 |
95 - 99 | 4 |
100 - 104 | 1 |
mean =
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- Approximate the mean for following GFDT. Data Frequency 40 - 44 1 45 - 49 1 50 - 54 3 55 - 59 3 60 - 64 7 65 - 69 10 70 - 74 13 75 - 79 20 80 - 84 10 Approximate the mean for following GFDT. Report answer accurate to one decimal place.arrow_forwardapproximate the mean of the grouped data 135-139: 7 140-144: 16 145-149: 12 150-154: 10 155-159: 19arrow_forwardCh Older people often have a hard time finding work. AARP reported on the number of weeks it takes a worker aged 55 plus to find a job. The data on number of weeks spent searching for a job contained in the table below. 11 47 20 15 43 17 16 31 6. 34 6. 23 22 12 20 16 28 26 20 49 23 15 26 11 14 15 16 22 22 40 27 14 16 17 26 36 14 a. Provide a point estimate of the population mean number of weeks it takes a worker aged 55 plus to find a job. Round your answer to two decimal places. weeks b. At 96% confidence, what is the margin of error? Round your answer to four decimal places. c. What is the 95% confidence interval estimate of the mean? Round your answers to two decimal places. d. Find the skewness. Round your answver to four decimal places. Discuss the degree of skewness found in the sample data. What suggestion would you make for a repeat of this study? Considering a slightly larger sample next time Select your answer- a good strategy. Check My Wo.arrow_forward
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