User Account

All Pages

Confidence intervals for the unknown population mean

Assignment Help Basic Statistics
Reference no: EM13891469

A random sample of 25 with a mean of 80 and a standard deviation of 30 is taken from a population of 1000 that is normally distributed.

Find (a) the 90%, (b) the 95%, and

(c) the 99% confidence intervals for the unknown population mean.

(d) How do these results compare with those in Prob. 4.15?

Reference no: EM13891469

Questions Cloud

How the political systems of countries differ : Analyze how transition economies aremoving towards market based systems. You can use specific continents, countries, or country as your focus.
Find confidence interval for the unknown mean operating life : Find the 90% confidence interval for the unknown mean operating life of the entire shipment and sketch a figure for the results of part a.
Identify and explain at least two causes of world war ii : Identify and explain at least two causes of World War II. Then analyze America's foreign policy before the war, and describe how that policy changed as the war progressed
List and briefly describe three of the most important : List and briefly describe three of the most important aspects of the economic and political development of 19th century latin america.
Confidence intervals for the unknown population mean : Find (a) the 90%, (b) the 95%, and the 99% confidence intervals for the unknown population mean and how do these results compare with those in Prob. 4.15?
Cases of early 20th century asian modernization : The most important cases of early 20th century asian modernization
Following is not true of the european renaissance : Which of the following is not true of the European renaissance ? (a) It was a intellectual movement (b) It Found expression in the revival of the study of ancient Greco-Roman classics.
How do these t values compare with corresponding z values : Find the t value for 5, 2.5, and 0.5% of the area within each tail for a sample size, n, that is very large or infinite. How do these t values compare with corresponding z values?
Series of short articles for a bible dictionary : Two distinct projects, imagine you are writing a series of short articles for a Bible Dictionary. As we have seen in our study,Bible dictionaries are useful tools to learn more about the books, people, and places we encounter in Scripture.

Reviews

Write a Review

Basic Statistics Questions & Answers

  How many in workforce interviewed to meet requirements

A pilot survey reveals that 5 of the 50 sampled hold two or more jobs. How many in the workforce should be interviewed to meet your requirements?

  Find out probability values from discrete distribution

A consumer organization estimates that over a 1-year period 17 percent of cars will require to be repaired once, 7 percent will need repairs twice, and 4 percent will require three or more repairs. What is the probability that a car chosen at rand..

  1in the 2004 presidential election early exit polls

1.in the 2004 presidential election early exit polls conducted at key precincts indicated a strong lead for john kerry.

  Which of the following would not result in an increase in

which of the following would not result in an increase in the power of anova?a. increasing the differences between the

  What is the probability that exactly three workers

What is the probability of no off-the-job accidents during a one-year period and what is the probability of at least two off-the-job accidents during a one-year period - what is the probability that exactly three workers tali public transportation da..

  Find standard deviation for sample data

Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data.

  Find the margin of error of poll using confidence level

In a recent poll, 126 people were asked if they liked dogs, and 6% said they did. Find the margin of error of this poll, at the 90% confidence level.

  Classify independent or dependent samples

White blood cell counts for a group of volunteers before being innoculated, and white blood cell counts for a second group of volunteers after being innoculated.

  Find out the percentile of the normal distribution

If life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age.

  F-statistic and the y intercept

In a regression analysis, three independent variables are used in the equation based on a sample of forty observations. What are the degrees of freedom associated with the F-statistic?

  Creating confidence interval to estimate sigma

Out to right, create a 90% confidence interval estimate of sigma (σ), population standard deviation.

  The highest price consumers are willing to pay

I want to establish if a new product is worth marketing. At least 85 percent of the public must express interest in the product and for those that do the average cost they are willing to pay must be at least $47.50.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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