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 42 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?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Weber test: Place the base of the tuning fork on top of the client’s head. Weber test: Place the base of the tuning fork on top of the client’s head.
Calipers are used to measure the body fat on the triceps of a patient. Calipers are used to measure the body fat on the triceps of a patient.
Schematic drawing of a permeation test cell used to measure the permeation rate of chemicals through ... Schematic drawing of a permeation test cell used to measure the permeation rate of chemicals through ...
Finger-to-nose test Finger-to-nose test
Taste Test Taste Test
Public Speaking: Strategies for Success, 9th Public Speaking: Strategies for Success, 9th
Video: Rh blood type and complications during pregnancy & Fertilization

For a complete list of videos, visit our video library