Explain how much money do these people make each year., Ask an Expert

Statistics

Finding the 90% confidence interval for the population mean and margin of error.
Salaries: Student Services Consider college official in admissions, registration, counseling, financial aid, campus ministry, food services, and so on. How much money do these people make each year? Suppose you read in your local newspaper that 45 officials in student services earned an average of = $50,340 each year (Reference: chronicle of Higher Education).

(a) Assume that σ = $16,920 for salaries of college officials in student services. Find a 90% confidence interval for the population mean salary of such personnel. What is the margin of error?

(b) Assume that σ = $10,780 for salaries of college officials in student services. Find a 90% confidence interval for the population mean salary of such personnel. What is the margin of error?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9167094

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Find the modified internal rate of return mirr the annual

Find the modified internal rate of return (MIRR) The annual rate is 8.24%. Initial outlay is $356,800. Year 1: $163,100 Year 2: $173,100 Year 3: $181,300 Year 4: $175,700 Year 5: $161,400

Approximately once a month cars are shipped from rotterdam

Approximately once a month cars are shipped from Rotterdam, Holland to Lagos, Nigeria. The past data collection indicates that the weight of a car is normally distributed with the mean of 1,070 kg and the standard devia ...

A city of flies has a population that doubles once every

A city of flies has a population that doubles once every day. The flies go extinct from overpopulation on the 30th day. On which day was the fly population halfway from extinction?

A clinical psychologist is the primary therapist for 18

A clinical psychologist is the primary therapist for 18 patients. She randomly selects a sample of 3 patients to be in her study. How many different samples of this size can be selected from this population of 18 patient ...

Useby using we need write the Useby using we need write the answer

Useby using we need write the answer download.file("http://www.openintro.org/stat/data/ames.RData", destfile = "ames.RData") load("ames.RData") area price I need how to Get a sample with a size of 100, and find the sampl ...

New york graduates tend to leave the state after graduating

New York graduates tend to leave the state after graduating. A study asked the students of NYU "Are you planning to stay in NY after graduation?" In the sample, only 37% answered yes. The study explained that with a 95% ...

In a population of phd students 50 have paid assistant

In a population of Ph.D students 50% have paid assistant ships. A random sample of n=200 students are chosen. What is the expected number of students who have paid assistant ships in this sample?

According to a field poll 79 of california adults actual

According to a Field Poll, 79% of California adults (actual results are 400 out of 506 surveyed) feel that "education and our schools" is one of the top issues facing California. We wish to construct a 90% confidence int ...

Gven that x is binomially distributed with n 36 and p

Given that X is binomially distributed with n = 36, and p = 0.33, use the normal approximation to the binomial (with correction for continuity) to estimate the probability that X is less than 14? Round your answer to 2 p ...

We want to estimate the mean weight of all 7thnbspgrade

We want to estimate the mean weight of all 7th grade boys in a city. It is not known whether the distribution of the weights is normal or not. Suppose we have a random sample of 64 boys from 7th grade from that city and ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert