User Account

All Pages

The east coast researcher decides to construct a two-sided

Assignment Help Basic Statistics
Reference no: EM13578248

Question: A researcher in the West Coast of the U.S. wants to estimate the amount of a newly discovered antibody in human blood. His research funds will only let him obtain blood samples from 41 people, so he decides to construct a two-sided 90% confidence interval thinking it will give him a more precise estimate of the mean antibody level in the population. Another researcher on the East Coast of the United States is researching the same antibody, but has more research funding and can afford to obtain blood samples from 121 people. The East Coast researcher decides to construct a two-sided 99% confidence interval. Which researcher will have the more precise estimate? State your reason for choosing your answer. It may help to imagine that the sample standard deviation will be about the same for both samples.

Reference no: EM13578248

Questions Cloud

A product sells for 135 variable costs are 100 and fixed : a product sells for 135 variable costs are 100 and fixed costs are 68000. if the selling price can be increased by 21
Increasing the alpha level from 01 to 05 changing from a : explain how the power of a hypothesis test is influenced by each of the following. assume that all other factors are
The building and equipment are estimated to cost 1200000 : thurman munster the owner of adams family rvs is considering the addition of a service center his lot. the building and
Identify a pair of variables for which you would expect to : identify a pair of variables for which you would expect to see a strong correlation but not a cause-and-effect
The east coast researcher decides to construct a two-sided : question a researcher in the west coast of the u.s. wants to estimate the amount of a newly discovered antibody in
A sample of n 16 individuals is selected from a normal : a sample of n 16 individuals is selected from a normal population with a mean of micro 48 and a standard deviation of
Douglass indicated that the 14000 deficit would be covered : a local partnership was in the process of liquidating and reported the following capital balancesjustice capital 40
What is the advantage of reducing process variation thereby : motorola used the normal distribution to determine the probability of defects and the number of defects expected in a
State your reason for choosing your answer it may help to : q1.a researcher in the west coast of the u.s. wants to estimate the amount of a newly discovered antibody in human

Reviews

Write a Review

Basic Statistics Questions & Answers

  Testing categorical probabilities-one-way tables

Specify the null and alternative hypotheses you would use to determine if the opinions of Internet users are evenly divided among the four categories.

  Find a eulerization of the graph

Find a eulerization of the graph that will allow the garbage truck to make a reasonably efficient Eulerian circuit through the neighborhood.

  Finding earliest completion time and critical path for play

Find out the earliest completion time for play and critical path.

  Confidence interval and true mean

A food snack manufacturer samples 13 bags of pretzels off the assembly line and weighs their contents. If the sample mean is 14.7 oz. and the sample standard deviation is 0.50 oz., find the 95% confidence interval of the true mean.

  Voter registration records

A review of voter registration records in a small town yielded the following table of the number of males and females registered as Democrat, Republican, or some other affiliation.

  Detyermine the standard error of estimation

Assume that a random variable, x, is distributed according to a normal distribution with mean 46 and standard deviation 12. (a) What is the standard error of the estimate, x-bar, if a sample of size 25 is taken?

  Sufficient evidence to indicate that the bulbs

Determine if this sample data provides sufficient evidence to indicate that the bulbs have their advertised life expectancy. Do NOT do a confidence interval.

  Find the probability density function for the

find the probability density function for the t-distribution with 1 degree of freedom. hint in math 380 you calculated

  What percent of pregnancies last over days

The length of a human pregnancy has a mean of 267 days and a standard deviatin of 16 days. Assume a normal distribution. What percent of pregnancies last over 283 days.

  Score on the standardized test

A researcher believes that if she uses a different text the students will score differently on the standardized test but she doesn't know what the difference is. The test had a mean of 110 and a σ of 12.

  Sampling error to calculate sample mean

Given this information, what would sampling error be if sample including seven values in top row were used to calculate sample mean?

  Find probability that sample mean waiting time will exceed

If these two assumptions are correct, then what is the probability that the sample mean waiting time,T, based on your random sample of size n=36, will exceed 104 hours?

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