# Question

Certifcation Magazine conducted a salary survey of US IT (Information Technology) professionals, contacting a simple random sample of 7130 certified IT specialists. The sample average salary was $96,677.

a. Estimate the average salary for the population of IT professionals represented by the sample. Use a 99% confidence level and assume the standard deviation for the population of IT salaries is known to be $8200.

b. Carefully interpret the interval you produced in part a.

c. For your interval in part a, identify the margin of error term and the standard error term.

a. Estimate the average salary for the population of IT professionals represented by the sample. Use a 99% confidence level and assume the standard deviation for the population of IT salaries is known to be $8200.

b. Carefully interpret the interval you produced in part a.

c. For your interval in part a, identify the margin of error term and the standard error term.

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