Discuss population mean and population standard deviation

Assignment Help Basic Statistics
Reference no: EM131654192

Question: Suppose we are told the sampling distribution developed from a sample of size 400 has a mean of 56.78 and a standard error of 9.6. If the population is known to be normally distributed, what are the population mean and population standard deviation? Discuss how these values relate to the values for the sampling distribution.

Reference no: EM131654192

Questions Cloud

Find probability that a sample of size has an average amount : If it is possible to determine the probability that a sample of size 5 has an average amount saved in a 401(k) plan that is more than $115,260, do so.
How much time required to bake fruit pie at ellardo bakeries : When its ovens are working properly, the time required to bake fruit pies at Ellardo Bakeries is normally distributed with a mean of 45 minutes.
Probability the mean repair cost for a sample of customers : What is the probability the mean repair cost for a sample of 100 customers will be between $15.10 and $15.80?
Content with in attempting to serve particular target market : What level of product dissatisfaction should a marketer be content with in attempting to serve a particular target market?
Discuss population mean and population standard deviation : If the population is known to be normally distributed, what are the population mean and population standard deviation?
Outstanding engineering-tradition and versatility : Since it was founded in 1931, the core of the Porsche brand was outstanding engineering, tradition, and versatility."
Hypothesis or null hypothesis to be proved or disproved : Hypothesis or Null Hypothesis to Be Proved or Disproved (if feasible). Nature of Data to Be Gathered and Analyzed,
Determine the standard error obtained from a population : Consider the standard error of a sample proportion obtained from a sample of size 100. Determine the standard error obtained from a population with p = 0.1.
Management to improve the company market standing : How would you advise the management to improve the company market standing, competitiveness, and financial performance over the next 3-5 years?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Application of t tests

Identify a research question from your professional life or career specialization that can be addressed by an independent samples t test.

  Find the expected frequency for contingency table

Find the expected frequency for the given Contingency Table, where the Observed frequency is 88 and 10. Use a 0.05 significance level to test the claim that getting an infection (cold) is independent of the treatment group. What does the result in..

  The results from two factor experiment can presented in a

the results from two factor experiment can presented in a matrix with levels if one factor forming the rows and the

  Descriptive statistics-normal distribution

In order to control costs, a company wishes to study the amount of money its sales force spends entertaining clients. The following is a random sample of six entertainment expenses (dinner costs for four people) from expense reports submitted by m..

  Problem regarding the different possible outcomes

List the 10 different possible outcomes. Suppose that Boards 1 and 2 are the only defective boards in a lot of five. Two boards are to be chosen at random. Define x to be the number of defective boards observed among those inspected. Find the prob..

  Resting heart rates for a sample of individuals

Assume the resting heart rates for a sample of individuals are normally distributed with a mean of 80 and a standard deviation of 5. Use the 68-95-99.7 rule to find the following quantities.

  Calculate and interpret confidence interval for mean level

Scale with a standard deviation of 10. Calculate and interpret the 90 precent confidence interval for the pipulation mean level of satisfaction.

  A couple wishes to borrow money using the equity in their

a couple wishes to borrow money using the equity in their home for collateral. a loan company will loan them up to 70

  Estimate the population mean for all workers at company

Estimate of the population mean for all workers at the company. Unknown to you, the sampling distribution of the sample mean has an average value of 4.8.

  Difference in the proportions of female students

The English Department wants to know whether there is a difference in the proportions of female students taking Eng 110 and Eng 100 courses. Samples are collected from each class: Eng 110 sample found 16 out of 29 students in class and Eng 100 ..

  What is the value for x2left for a 95 confidence interval

what is the value for x2left for a 95 confidence interval when n 18?a. 7.564b. 8.672c. 9.390d.

  Comment on the assumptions and conditions

Construct and interpret a 95% confidence interval for the difference between female and male crossing times.- Comment on the assumptions and conditions.

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