8. For the date 4, 16, 20, 24, 38,57,59,60,60,74, compute the 10% trimmed mean.
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- 8. What information can you obtain about the scores in a regular frequency distribution table that is not available from a grouped table?b. The compensation received by the highest-paid executives of 12 international companies (in $'000) is as follows: 801 820 2215 803 850 856 899 846 902 856 911 947 i. Find the mean and the median compensation of the executives. Comment on the skewness of the distribution of the executives' compensations. 22. Dr. Xyz claims that the average salary of workers in Jones is P35,000. A random sample of 100 workers are found that their mean salary is P40,000. H, H,: EXPLANATION :
- the driving distances (miles) to wor of 30 people are shown below. assume the population standard deviation is 8 miles. Find: 12, 9, 7, 3, 27, 21, 2, 30, 7, 4, 1, 10, 2, 9, 2, 28, 7, 10, 13, 6, 13, 7, 3, 13, 6, 6, 3, 13 ,12, 16, 18 a) the point estimate of the population mean b) the margin of error for a 95% confidence interval c) contruct a 95% confidence interval for the population mean.12. x: 471.7 659.3 740.5 790.5 781.3 1047.3 969.5 1206.1 y: 446.3 680.2 725.2 765.3 740.4 1005.6 936.3 1156.8 Using the data find the y mean 219.60 833.28 205.42 807.01Blood serum cholesterol level of 10 persons are as under: 240,260,290,245,255,288,272,263,277,257. Calculate S. D. with the help of assumed mean.
- 68. The following table shows how high school students in four grade levels ate their lunch on a particular day – purchased in the cafeteria, brought a bag lunch, or purchased lunch off campus. What is the approximate proportion of Juniors that purchased lunch off-campus on this particular day? (A) 0.06 (B) 0.37 (C) 0.24 (D) 0.27 (E) 0.3517- How do you find Median for even number of observations under ungrouped method? a. Arrange the data in ascending order and multiply middle two numbers b. Arrange the data in ascending order and find the difference of middle two numbers c. Arrange the data in ascending order and add middle two numbers d. Arrange the data in ascending order and take the average of middle two numbers
- Example 19.13 A company used three different methods of advertising its product in three cities. It later found the increased sales (in thousand rupees) in identical retail outlets in the three cities as follows: City A: City B: City C: 70 58 60 45 55 62 89 72 65 57 48 55 75 68 45 52 63 53 59 71 70 63 60 58 7562. Edit the randomfund script to reflect your revised model and run it 600 times. Include a printout of your revised function.