Please help me in my activity about Statistics

5mm 1. Calculate the following values: 18, 20. 25. 28. 30, 32, 33 a. Calculate the mean, the medianI and the mode. b. Add 10 to each value and recalculate the mean. Compare the result with the value obtained in [a]. c. Subtract 1D to each value and recalculate the mean. Compare the result with the mean In {a}. d. Multiply each value by 2 and recalculate the mean. How does the result compare with the mean in {a}. us. Make a generalization based on your computation. f. Can you make a similar generalization if the values are each divided by a constant? Engineering Data Analysis Page 45 2. The following are the average number of minutes required to do an assembly job by the 15 workers of a manufacturing plant: T), 35, 63, 54, 62, 78, so, 43, 63, '9, 69, 55, 63, 7B, and 71. calculate the mean, the median, and the mode of the distribution. 3. The followlng is a distribution for the number of employees in 40 companies belonging to a certain industry. Calculate the following: a. Mean, median, and mode 11. First and third quartiles c. Third and ninth deciles d. Thirty-fifth and seventy-third percentiles No. of No. of Employees Companies Engineering Data Analysis Page 4? 4. A company pays its 115 employees a mean monthly salary of 9115310500; a second one pays its ?5 employees an average monthly salary of Php12,720; and a third company pays its 92 employees an average monthly salary of Php11,3DD. what is the average salary per employee in the three companies