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Hi, can you help me answer this question QUESTION 1 (15 MARKS) A sample of 40 workers at a manufacturing company was randomly selected and

Hi, can you help me answer this question

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QUESTION 1 (15 MARKS) A sample of 40 workers at a manufacturing company was randomly selected and their monthly salaries were summarized as in the following table. Monthly Salary Number of (RM) workers 500 - 1000 7 1000 - 1500 12 1500 - 2000 8 2000 - 2500 5 2500 - 3000 3000 - 3500 -w 3500 - 4000 a. Computed the mean and interpret. (3 marks) b. Compute the variance of the monthly salary. (9 marks) c. The mean and standard deviation of monthly salary of other manufacturing company are RM1500 and RM750, respectively. Determine which company offers a more stable monthly salary

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