Shape of the population distribution

Assignment Help Basic Statistics
Reference no: EM1387953

A study estimate the mean annual people income for people living in public housing in California. for a random sample of 30 ppl the annual incomes are:

83,90,77,100,83,64,78,92,73,122,96,60,85,86,108,70,139,56,94,84,111,93,120,70,92,100,124,59,112,79.

a. construct a stem and leaf plot of the income. what do you predict about the shape of the population distribution.

b. complete the following sentence. Fifty percent of the data falls below $ ______.

c. Find the point estimate for the population mean and standard deviation.

d. construct and interpret a 95% confidence interval for.

Reference no: EM1387953

Questions Cloud

Principle of good samaritan laws : Critically discuss the principle of Good Samaritan laws. Discuss one way that you believe such laws are beneficial to society and one way that you believe they are detrimental to society.
Describe the advantages afforded by a user-friendly : Describe the advantages afforded by a user-friendly, "intelligent", data-entry screen as opposed to the default screen
Ethical theories to support worldviews : Every person approaches life with the certain perspective or worldview which could be identified with the specific ethical theory. Which ethical theoretical framework best describes your personal worldview?
Growing power of specialty oriented providers : Critically discuss the recently growing power of specialty oriented providers of care. Why was there a backlash with regards to managed care?
Shape of the population distribution : Construct a stem and leaf plot of the income. what do you predict about the shape of the population distribution. complete the following sentence. Fifty percent of the data falls below $ ______.
A corporation is liable for the torts and crimes : A corporation is liable for the torts and crimes that are committed by its agents and employees when they are acting within the scope of their employment
Find round-trip delay due-speed of light equal transmission : At what data rate does round-trip delay due to speed of light equal transmission delay for 1-KB packet? Suppose speed of light in fibre to be 2/3 speed of light in vacuum.
Operations equipment from five warehouses in the usa : McMaster-Carr sells maintenance, repair, and operations equipment from five warehouses in the Untied States. W.W. Grainger sells products from more than 350 retail locations
Genetics alleles : Natural selection raise the frequency of advantageous alleles. When a new allele is first created via mutation, it is at low frequency.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Approximated through the poisson distribution

Assume the arrival of these emails is approximated by the Poisson distribution.

  Evidence of a significant difference

Is there evidence of a significant difference in the proportion who get their news primarily from newspapers between those 36 to 50 years old and those above 50 years old? (use α = 0.05)

  Sample mean water use per day problem

Thirty homes responded, and the sample mean water use per day was 77 gallons with a standard deviation of 9.0 gallons per day.

  Quadratic regression model

Using quadratic regression model find the estimated number of planes.

  Mean for a distribution

It is better to use the median rather than the mean for a distribution when:

  Confidence interval limits of mean age

If the confidence interval limits do not include age below 20 does it mean that motor cyclists under the age of 20 rarely die in crashes?

  Test whether there is more variation using variance test

At the .01 significance level, can we conclude that there is more variation?

  Multiple choice questions-type one and type one error

For the following hypothesis test where H 0 :  m   £10 vs. H a :  m   >10, we reject H 0  at level of significance  a  and conclude that the true mean is greater than 10 when the true mean is really 8.

  Average salary

For each of the 50 states and Washington, D.C., a number of statistics related to education are available for 1992

  Normally distributed population

Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15.

  Creating raw score predictions on criterion variable

Create raw score predictions on criterion variable for persons with Z scores on predictor value of -2,-1,0,+1,+2.

  Cpmputing mean of normal probability distribution

Area to right of mean of normal probability distribution is?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd