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Sample annual salaries (in thousands of dollars) for employees at a company are listed.53 35...

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Sample annual salaries (in thousands of dollars) for employees at a company are listed.53 35 52 49 30 30 53 35 52 33 49 53 45(a) Find the sample mean and sample standard deviation.(b) Each employee in the sample is given a 5% raise. Find the sample mean and sample standard deviation for the revised dataset.(c) To calculate the monthly salary, divide each original salary by 12. Find the sample mean and sample standard deviation for therevised data set(d) What can you conclude from the results of (a), (b), and (c)?(a) The sample mean is x = thousand dollars.(Round to one decimal place as needed.).*****

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