« previous next »

Author Question: YouTube would like to test the hypothesis that the average length of an online video watched by a ... (Read 141 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Jun 24, 2018
YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people watched online videos that averaged 8.7 minutes in length.
 
  It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to set  = 0.02. The critical value for this hypothesis test would be ________.A) 2.05
  B) 1.96
  C) 1.645
  D) 1.28

Question 2

The sample correlation coefficient can be equal to any value __________
 
  A) between 1.0 and +1.0.
  B) greater than or equal to zero.
  C) other than zero.
  D) between and .
Business Statistics ¦ Donnelly ¦ 2nd Edition
Buy Test-Bank


Li Jun

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jun 24, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Drawer Test Drawer Test
Online Courses Online Courses
Prostate-specific antigen test. Prostate-specific antigen test.
WANKELMUT & EMMA LOUISE - My Head Is A Jungle (Official Video) WANKELMUT & EMMA LOUISE - My Head Is A Jungle (Official Video)
RÜFÜS DU SOL You Were Right [Official Video] RÜFÜS DU SOL You Were Right [Official Video]
Blondie - Call Me (Official Video) Blondie - Call Me (Official Video)
Video: Angiotensin II - kidneys, adrenal glands and dehydration

For a complete list of videos, visit our video library