An anthropologist wishes to estimate the average height of the inhabitants of a certain region. If the population standard deviation is assumed to be 2.5 inches and if she randomly samples 100 people, find the probability that the difference between the sample mean and the true population mean will not exceed 0.5 inches. If the anthropologist wants the difference between the sample mean and the population to be less than 0.4 inches with probability 95%, what sample size should she use?

An anthropologist wishes to estimate the average height of the inhabitants of a certain region. If the population standard deviation is assumed to be 2.5 inches and if she randomly samples 100 people, find the probability that the difference between the sample mean and the true population mean will not exceed 0.5 inches. If the anthropologist wants the difference between the sample mean and the population to be less than 0.4 inches with probability 95%, what sample size should she use?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

What is/are the solution(s) to the equation - 2? I-2. 1-3. I-4. I-2 ar z- 4.
please answer in a digital response so I may fill in the blanks, thank you in advance!
Please show steps neatly for each problem. Thanks!
Solve the problem below. For your initial post in Brightspace, copy the description of your company given in the box below and then enter your solution to all three parts (parts a, b, and c) of the problem. To copy the description of your company, highlighting and using "copy" from here in Mobius and then using "paste" into Brightspace should work. However, if when you copy and paste x you get a 2 instead, then change your x2 to x^2. Hint: We covered this topic in "2-1 Reading and Participation Activities: Quadratic Equations" in Module Two. You can check your answer to part b to make sure that you are on the right track. For a certain company, the cost for producing x items is 40x +300 and the revenue for selling a items is 80r - 0.5x2. The profit that the company makes is how much it takes in (revenue) minus how much it spends (cost). In economic models, one typically assumes that a company wants to maximize its profit, or at least wants to make a profit! Part a: Set up an expression…
Solve the following equation for x. 3( 2x - 5 ) = 4 + 7( x + 2 )
Match the property used in each equation to rewrite it. Group of answer choices X + Y + Z = Y + Z + X 12/4 + 3 = 3 + 4/12 (A+B)+C = A+(B+C) -3(X + Y) = -3X - 3Y (X)(Y)(Z) = (Y)(X)(Z) (2/3) * (3/2) = 1
Find the value of X in the given equations