Sample proportion of a sample size

Assignment Help Basic Statistics
Reference no: EM1386517

A sample proportion is calculated from a sample size of 394. How large of a sample would we need in order to decrease the standard error by a factor of 9?

1) 1,182

2) 788

3) 3,546

4) 3,940

5) 31,914

Reference no: EM1386517

Questions Cloud

Write program to evaluate young worker-s earning : Write down a program to evaluate how much young worker will make before retiring at age 65. Request worker's name, age, and starting salary as input.
Confidence interval for the true proportion of all e-mail : What is the 99% confidence interval for the true proportion of all e-mail subscribers that opened the e-mail within 24 hours of receiving it?
Define the enhancement in temperature of the bullet : A grinding wheel 0.45 in diam rotates at 2900. What is acceleration of a point on the edge of the grinding wheel.
Various models or analogies of nature : Summarize and describe the main differences between the various models or analogies of nature outlined by R. G. Collingwood in the idea of nature.
Sample proportion of a sample size : A sample proportion is calculated from a sample size of 394. How large of a sample would we need in order to decrease the standard error by a factor of 9?
Create a vector or plasmid in class : Jimmy, a new undergraduate researcher in the lab, is told to make a vector having a copy of the CELLBIO gene from Dr. Acosta's genome as well as a selectable gene, Ampr.
Sketch the eer diagram for unique number and single location : A department controls number of projects, each of which has unique name, unique number, and a single location. Sketch the EER Diagram for this situation.
Find the magnitude of the horizontal component : A 15g rifle bullet traveling 220 m/s buries itself in a 3.5 kg pendulum hanging on a 2.7 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
Historical development of religious philosophy : Considering the historical development of religious philosophy, whose philosophies do you think most advanced Western religious thought? This is a general question, I have an idea, but need another opinion.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Poisson distribution with parameter

Let X 1 , X 2 , X 3 , X 4  be a random sample from a Poisson distribution with parameter λ and let Y = X 1  + X 2  + X 3  + X 4 . You decide to test λ = 1.60 versus λ

  Marginal density and expected value using joint density

a)  Find the marginal density of Y. b)  Find  E(X)   HINT: What is  E (X|Y=y) ?

  Determining confidence interval for average weights

Determine 80% confidence interval for average weights of Allen's hummingbirds in study regions. Determine the margin of error?

  Evaluate the numerical value of the anova f statistic

The researcher computes the sum of squares for groups as SSG = 40030 and the sum of squares for error as SSE = 414780. The numerical value of the ANOVA F statistic is

  Test for one sample population mean

By using a level of significance of .10, is there evidence that the population mean weight of the candy bars is greater than 4.3?

  Evaluate the t statistic for testing contrast

The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast

  The sample standard deviation for each process

Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.

  A normal population has a mean of 80.0

Calculate the probability of a value between 75.0 and 90.Calculate the probability of a value of 75.0 and less.

  The difference between the two population means

A Cornell university study of wage differentials between men and women reported that one of the reasons wages for men are higher than wages for women is that men tend to more years of work experience than women. Suppose the following results were ..

  Satisfaction with service between the two branches

Estimate with 90% confidence the difference in the level of satisfaction with service between the two branches.

  Determining solution which is normally distributed with mean

Health and Nutrition Examination Survey, suppose that weights of men now are normally distributed with mean of m =172 pounds and standard deviation of s = 29 pounds.

  Creating confidence interval for true mean amount

Create a 90% confidence interval for true mean amount of cholesterol in chicken eggs.

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