Assume that the population standard deviation is 2 the

Assignment Help Basic Statistics
Reference no: EM13626055

Assume that the population standard deviation is 2 The margin of error for a 98% confidence interval is desired to be =/- 0.5inches.

What should be the sample size?

Reference no: EM13626055

Questions Cloud

A what is the velocity at the bottom of the pipe b what is : a 4 diameter pipe elevates water vertically 100 feet. if the flow rate is 10 gpm a what is the velocity at the bottom
For samples of size 1010 find the probability of observing : suppose that in reality 19.12 of u.s. employees play hooky. a poll was taken of 1010 u.s. employees. the employees
What are the percent errors associated with the : in the absence of compressed liquid property tables it is common to approximate properties by using the saturated
Researchers are studying yield of a crop in ten locations : researchers are studying yield of a crop in ten locations. the researchers are going to compute independent 90
Assume that the population standard deviation is 2 the : assume that the population standard deviation is 2 the margin of error for a 98 confidence interval is desired to be -
Compute the weight percent of germanium that must be added : germanium forms a substitutional solid solution with silicon. compute the weight percent of germanium that must be
An agricultural researcher plants 100 plots with a new : an agricultural researcher plants 100 plots with a new variety of yellow corn. assume that the yield per acre for the
What is the expected value of perfect : what is the expected value of perfect information?decisionss1 .20s2 .10s3
A local real estate investor in orlando is considering five : a local real estate investor in orlando is considering five alternative investments a day spa a theater a restaurant a

Reviews

Write a Review

Basic Statistics Questions & Answers

  A production process that fills 12-ounce cereal boxes is

a production process that fills 12-ounce cereal boxes is known to have a population standard deviation of 0.009 ounce.

  Estimating statistics - probability

It has been reported that the average US office worker receives 14 fax messages per day. For purposes of this exercise, we will assume that the daily number of fax messages is normally distributed with a standard deviation of 5.0 messages.

  A pollster conducts a survey to determine the proportion

a pollster conducts a survey to determine the proportion of voters who favor his candidate. out of 1447 people surveyed

  Creating the unbiased point estimate

Use given data to create the unbiased point estimate of 12σ'>  2 of percentage of termites that are minor workers.

  Sample size for finding the population proportion

Supposing that the entire $10,000 can be spent on tires (ignoring other costs), and that the true fraction that will fail is approximately .05, can NHTSA attain its goal while staying within the budget? Describe.

  What is the variance and standard deviation

Twenty three percent of automobiles are not covered by insurance. On a particular weekend, 35 automobiles are involved in accident.

  Z-score corresponding to the sample mean

Suppose you take a sample of size 100 of test scores and find that the mean is 63. What is the z-score corresponding to this sample mean?

  In 2005 the average gpa for students was 315 a sample in

1. in 2005 the average gpa for students was 3.15. a sample in 2008 showed that the average gpa for students was 3.46.

  Find the upper control limit for the averages in process

The average range found over these samples is 0.15 gallons. What is the upper control limit for the averages in this process?

  Suppose that in reality only 2 in 100 bags actually contain

the transportation safety authority tsa has developed a new test to detect large amounts of liquid in luggage bags.

  Estimating the population correlation coefficient

a) Specify the null and alternate hypotheses for testing that the population correlation is negative. b) Calculate the estimate of the population correlation coefficient between X and Y.

  Compute the mean median mode and standard deviation for the

compute the mean median mode and standard deviation for the following discrete probability distribution.value of

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