This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A manager wishes to estimate a population mean using a 95 confidence interval estimate that has a ... (Read 169 times)

tingc95

  • Hero Member
  • *****
  • Posts: 556
on: Jun 24, 2018
A manager wishes to estimate a population mean using a 95 confidence interval estimate that has a margin of error of 44.0. If the population standard deviation is thought to be 680, what is the required sample size?
 
  A) 1215
  B) 871
  C) 1050
  D) 918

Question 2

The Dilmart Company has 8,000 parts in inventory. The mean dollar value of these parts is 10.79 with a standard deviation equal to 3.34.
 
  Suppose the inventory manager selected a random sample of n = 64 parts from the inventory and found a sample mean equal to 11.27. The probability of getting a sample mean at least as large as 11.27 is approximately 0.444. Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kaillie

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

FALSE


tingc95

  • Member
  • Posts: 556
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

peter

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Population predictions for 2000–2050, using three different total fertility rates ( Population predictions for 2000–2050, using three different total fertility rates (
Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater, Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,
Comparing Prison Inmates With The U.S. Population Comparing Prison Inmates With The U.S. Population
Three Population Pyramids Three Population Pyramids
World population density World population density
Which of the following is the most reasonable estimate of the number of characters (typed ... Which of the following is the most reasonable estimate of the number of characters (typed ...
Video: What are the Parts of a Plant Cell?

For a complete list of videos, visit our video library