Probability related to retirement

Reference no: EM1390405

A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.

Find the mean and standard error of the sampling distribution of the sample mean.

What is the probability that the mean age exceeds 73 years?

What is the probability that the mean age is at most 73 years?

What is the probability that two randomly selected retirees are over 73 years of age?

Reference no: EM1390405

Questions Cloud

Dvd rental store problem : A DVD rental store wants to know what proportions of its customers are under age 21. A simple random sample of 500 customers was taken, and 375 of them were under age 21. Presume that the true population proportion of customers under age 21 is 0.6..

What makes a constraint critical or active : What makes a constraint critical or active? Explain. Jim has used the theory of constraints to maximize the production of his active constraints and match the production rate in the rest of his facility to the bottlenecks

Compute the number of photons in the pulse : Graph the power of the laser when it's on. b) Compute the energy in the pulse. c) Compute the number of photons in the pulse.

Question about karyotype : A karyotypically normal couple has a child with trisomy twenty-one Down syndrome. DNA analysis if 21q polymorphic markers reveals the following results.

Probability related to retirement : A sample of 50 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.

Graphs bars and histogram questions : What would be the most appropriate graphical representation to show the dispersion of new home prices in a particular area? Why?

Explain how the theory of constraints could be employed : Explain how the theory of constraints could be employed to improve the results of a team using six sigma process improvment techniques.

Cell mediated immune response : Needed immunity involves both a humoral immune response and a cell-mediated immune response. To review the definitions of these immune responses.

Which type of power is dominant when a leader utilizes : Which type of power is dominant when a leader utilizes his or her ability to control punishments? Which of these describes a vision (as it pertains to leadership)?

User Account

All Pages