This topic contains a solution. Click here to go to the answer

Author Question: A sociologist develops a test to measure attitudes about public transportation, and 27 randomly ... (Read 85 times)

SAVANNAHHOOPER23

  • Hero Member
  • *****
  • Posts: 542
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
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




poopface

  • Sr. Member
  • ****
  • Posts: 339

 

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

For a complete list of videos, visit our video library