My Math Forum  

Go Back   My Math Forum > Math Forums > Math

Math General Math Forum - For general math related discussion and news

Thanks Tree1Thanks
  • 1 Post By topsquark
LinkBack Thread Tools Display Modes
January 30th, 2019, 10:04 AM   #1
Joined: Jan 2019
From: California

Posts: 3
Thanks: 0

Unhappy Please help with math

A researcher is studying a population of bats in which 16% of the population has a certain trait.

The researcher wants sampling distribution with a standard deviation that is less than 2%.

Which sample sizes could the researcher use?

Select all that apply :




From a normally distribution population, a simple random sample of size 38 is taken. The mean of the sample is 82 and the standard deviation of the sample is 4.

What is the 90% confidence interval for the population mean?

Round to the nearest tenth
( [1], 83.1)
Horribleatmath is offline  
January 30th, 2019, 10:20 AM   #2
Math Team
topsquark's Avatar
Joined: May 2013
From: The Astral plane

Posts: 2,162
Thanks: 879

Math Focus: Wibbly wobbly timey-wimey stuff.
He already posted 1) here: Please help with math

Thanks from greg1313
topsquark is online now  

  My Math Forum > Math Forums > Math


Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fun Math Practice For Elementary School Kids: Zeus vs Monsters - Math Game for Window snezana Math Software 0 March 1st, 2016 12:28 AM
Math Content Which makes the Students to Learn Math Easily v4formath Math Books 0 August 15th, 2014 07:04 PM
A Level Math resources (Edexcel modular math textbooks) Sid Math Books 5 May 27th, 2014 12:20 PM
A Level Math resources (Edexcel Modular Math textbooks) Sid Academic Guidance 2 May 11th, 2014 07:23 AM
A book on basic math that explains how math really works mishaark Elementary Math 0 December 31st, 1969 04:00 PM

Copyright © 2019 My Math Forum. All rights reserved.