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A random sample of 100 new engineers in a particular state has a mean salary of 51,578. It is known from past history that the

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A random sample of 100 new engineers in a particular state has a mean salary of 51,578. It is known from past history that the standard deviation of the salaries for the engineers in the state is 12,000. Construct a 99 percent confidence interval estimate for the true mean salary for new engineers for the given state. SOLVE THE CONFIDENCE LEVEL

Questions:

WHAT IS THE MARGIN OF ERROR? (Refer to the previous problem)

WHAT IS THE INTERVAL ESTIMATION? (Refer to the previous problem)

WHAT IS THE POPULATION VARIANCE? (Refer to the previous problem)

WHAT IS THE POPULATION STANDARD DEVIATION? (Refer to the previous problem)

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2. The following are the heights in cm of the 10 Russian forces of Russia. COMPUTE THE POPULATION MEAN. * 172 181 175 175 179 172 171 183 180 185

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