Controllable method of increasing the precision

Assignment Help Basic Statistics
Reference no: EM13105827

Have been searching for the answers for these two questions for the past three days and cannot find them. Number 3 I answered but I want to check to see if I answered it correctly. Can anyone assist? Thank you in advance.

1. What is the most controllable method of increasing the precision (narrowing) of the confidence interval?

2. What percentage of times will the mean (population proportion) not be found within the confidence interval?

3. When you draw a sample from a normal distribution, what can you conclude about the sample distribution? Explain.

Reference no: EM13105827

Questions Cloud

Recognise a major public administration theory : Recognise a major public administration theory as well as relate it to the topic discussed in your article as part of your analysis.
Knowledge about statistics-confidence interval : This exercise is a "what if analysis" designed to determine what happens to the test statistics and interval estimates when elements of the statistical inference change.
Define the roles as well as responsibilities : Define the roles as well as responsibilities that organizational managers as well as leaders play in creating as well as maintaining a healthy organizational culture.
Describe the production process : Production Process- describe the production process, including the site, design, and layout of the facilities needed to produce a product.
Controllable method of increasing the precision : What is the most controllable method of increasing the precision (narrowing) of the confidence interval? What percentage of times will the mean (population proportion) not be found within the confidence interval?
Discuss characteristics of flat world : What are the characteristics of a flat world, a term used by Thomas Friedman to describe today's business environment? What challenges do they pose? How can you prepare to manage in a flat world?
Computation of regression equation : A regression equation was computed to be Y= = 35 + 6X. The value of the 35 indicates that:
Projects as well as typical business activities similar : In what way are projects as well as typical business activities similar? For most companies projects as well as typical business activities can be described as routine.
Consumer preferences for weather-related information : Can observation approaches be used to determine consumer preferences for weather-related information? If so which observational approaches would you use? Why?

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is correlation

1) What is correlation? 2) What is an example of two variables that are likely to be correlated because they are both changing over time?

  Understand the height of a california redwood tree

Any person who is familiar with these trees understand the height of a California redwood tree which is related to another characteristics of the tree.

  Example of bivariate regression

Provide a business example that you can apply regression to. State the null and alternative hypothesis using the appropriate phrasing for the type of regression chosen.

  Determining linear correlation coefficient

Determine: SS(xy)Linear correlation coefficient, r. Bar graph below compares mean time in seconds for 7-yr old girls to complete certain task.

  Issue trying to determine what equation to use

In this problem I am having an issue trying to determine what equation to use to solve. Is this a one or two way ANOVA or should I just use a z-test to solve?

  Calculating probability for the sample mean

For a random sample of 50 batteries, what is the probability that the sample mean will be less than 27.5 hours?

  Advantages of trimming the mean

If were interested in studying obesity in a small sample size of 10 adult men by looking at their body weights and heights, would you say that trimming the mean is a good idea? What are the advantages of trimming the mean in this situation? What a..

  Probability and z-score based on normal distribution

Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities.

  Analyzing an article

The article should include a margin of error and confidence interval. Discuss the subject matter in the article, and interpret the results and what the confidence interval and margin of error mean as they apply to the specific subject matter.

  Approximate confidence interval

Assume you want to estimate the population proportion,p, and the estimator for the mean proportion (p-hat)= 0.34, N = 6000, and n = 1300. Find an approximate 95% confidence interval for p.

  Variation and special cause variation

What is the difference between common cause variation and special cause variation?

  Queuing theory-wheat harvesting

The wheat harvesting season is short. Farmers deliver their truck loads of wheat to a giant central storage bin within a two-week span. Because of this, wheat-filled trucks waiting to unload and return to the fields have been known to back up for ..

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