« previous next »

Author Question: Sony would like to test the hypothesis that the standard deviation for the age of PlayStation users ... (Read 98 times)

folubunmi

  • Hero Member
  • *****
  • Posts: 524
on: Jun 24, 2018
Sony would like to test the hypothesis that the standard deviation for the age of PlayStation users is higher than the standard deviation for the age of Xbox users. The following table summarizes sample statistics from each population.
 
  PlayStation XboxSample standard deviation 4.3 years 3.9 yearsSample size 25 28The test statistic for this hypothesis test would be ________.A) 1.03
  B) 1.10
  C) 1.22
  D) 3.65

Question 2

Recent survey data indicated that 14.2 of adults between the ages of 25 and 34 live with their parents. A random sample of 125 young adults in this age group was selected.
 
  What is the probability that between 13 and 17 of these young adults lived with their parents?A) 0.1808
  B) 0.2620
  C) 0.3505
  D) 0.3135


234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

folubunmi

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Jun 24, 2018
Thank you :)


234sdffa

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jun 24, 2018
Happy to help you


« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Performing a PKU Test Performing a PKU Test
Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ... Using the voltmeter leads from a starting and charging test unit to measure the voltage drop ...
A latex agglutination test for rheumatoid factor. A positive control at 1. A negative control at 2. ... A latex agglutination test for rheumatoid factor. A positive control at 1. A negative control at 2. ...
standard reduction potential (Eo), the greater the tendency of the oxidized form of a redox couple standard reduction potential (Eo), the greater the tendency of the oxidized form of a redox couple
Test-Cross Results from Mendel’s Experiments Test-Cross Results from Mendel’s Experiments
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Polysaccharides

For a complete list of videos, visit our video library