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

Author Question: A sociologist develops a test to measure attitudes about public transportation, and 27 randomly ... (Read 40 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
on: Aug 2, 2018
A sociologist develops a test to measure attitudes about public transportation, and 27 randomly selected subjects are given the test.
 
  Their mean score is 76.2 and their standard deviation is 21.4. Construct the 95 confidence interval for the standard deviation, , of the scores of all subjects.
  A) 17.2 <  < 27.2 B) 17.5 <  < 27.8 C) 16.6 <  < 28.6 D) 16.9 <  < 29.3

Question 2

You want to be 95 confident that the sample variance is within 20 of the true population variance.
 
  A) 182 B) 210 C) 3056 D) 191


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Aug 2, 2018
Answer to Question 1

This is awesome you took your the time to answer these questions. You have been so helpful.

Answer to Question 2

B


SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
Reply #2 on: Aug 2, 2018
Thank you!


poopface

  • Sr. Member
  • ****
  • Posts: 339
Reply #3 on: Aug 2, 2018
Always glad to help...


« previous next »
 

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Performing a Glycosylated Hemoglobin A1C Test Using a Bayer DCA Vantage Analyzer Performing a Glycosylated Hemoglobin A1C Test Using a Bayer DCA Vantage Analyzer
A mini clamp-on digital multimeter can be used to measure alternator output and unwanted AC current ... A mini clamp-on digital multimeter can be used to measure alternator output and unwanted AC current ...
Ads from the public service campaign in the late 1960s and early 1970s that encouraged people to get ... Ads from the public service campaign in the late 1960s and early 1970s that encouraged people to get ...
Introducing Public Administration, 8/E Introducing Public Administration, 8/E
A hypothesis test is performed to test the claim that a population proportion is greater than ... A hypothesis test is performed to test the claim that a population proportion is greater than ...
Test of Yanofsky’s Proposed trp Operon Gene Order Test of Yanofsky’s Proposed trp Operon Gene Order
Video: Stomach peristalsis - Movement of Food Through the Small Intestine

For a complete list of videos, visit our video library