Annual salaries for federal employees

Reference no: EM13100457

In the early years of the twenty-first century, annual salaries for federal employees in the Upper Midwest averaged approximately $42,000, with a population standard deviation (σ) of $4,900. If we drew a random sample of 25 federal employees from this population:

What would the standard error of the mean be?

What is the probability that the sample mean would be between $41,000 and $43,000?

What is the probability that the sample mean would be between $41,000 and $43,000 if we increased the sample size to 100?

Reference no: EM13100457

Questions Cloud

Developing merchandise buying plan for marketing : Acting as a merchandise buyer for a fictitious store, the University Boutique.First develop the retailer's six-month buying plan. Secondly develop the retailer's merchandise assortment plan.

Gasoline prices in the twin cities area : The Minneapolis Star Tribune newspaper has decided to write an article about gasoline prices in the Twin Cities area (Minneapolis and St. Paul).

Write the displacement vector from aircraft : whose first two components are the polar coordinates of the horizontal displacement between the planes, and whose third coordinate is the vertical displacement between the planes. Consider east to be the positive x axis and north to be the positiv..

Information about standard deviation of distribution : A marketing poll revealed that 45% of Americans say they that they have dinner regularly as a family. You randomly choose 10 American families and ask if they regularly have dinner together as a family.

Annual salaries for federal employees : In the early years of the twenty-first century, annual salaries for federal employees in the Upper Midwest averaged approximately $42,000, with a population standard deviation (σ) of $4,900. If we drew a random sample of 25 federal employees from ..

Find the magnitude of the acceleration due to earth gravity : Above the surface of the Earth, the magnitude of the acceleration due to gravity is inversely proportional to the square of the distance from the Earth's center.

Explain the concept of structural holes : Explain the concept of structural holes and it affects value creation and value extraction. Based on this discussion, determine some of the skills essential to be a successful general manager.

Probability of patient surviving from disease : The probability that a patient recovers from a disease is 63%. What is the probability that:

What is the speed of the ball at that point : a 500 g ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle the tension in the string is 15 N. What is the speed of the ball at that point?

User Account

All Pages