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

Author Question: A 95 confidence interval for a population mean is determined to be 100 to 120 . If the confidence ... (Read 132 times)

khang

  • Hero Member
  • *****
  • Posts: 569
on: Jun 24, 2018
A 95 confidence interval for a population mean is determined to be 100 to 120 . If the confidence coefficient is reduced to .90, the interval for  _____.
 a. becomes narrower
  b. becomes wider
  c. does not change
  d. becomes .1

Question 2

The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces. What is the probability that a randomly selected item weighs exactly 8 ounces?
 a. .5
  b. 1.0
  c. .3413
  d. None of the answers is correct.
Statistics, Data Analysis, and Decision Modeling ¦ Evans ¦ 5th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

owenfalvey

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jun 24, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


khang

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Jun 24, 2018
Thank you


owenfalvey

  • Sr. Member
  • ****
  • Posts: 337
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Genetic drift and population size. Genetic drift and population size.
Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po Male Turkmen in the wealthier half of the population had higher fertility rates than those in the po
Fertility and Population Density, 1850 Fertility and Population Density, 1850
Population Projections of the United States Population Projections of the United States
Population Pyramids Population Pyramids
Mutagenicity of aflatoxin B1 determined by the Ames test Mutagenicity of aflatoxin B1 determined by the Ames test
Video: Normal and abnormal blood pH

For a complete list of videos, visit our video library