This topic contains a solution. Click here to go to the answer
« previous next »
Pages: 1 2  All   Go Down

Author Question: A researcher wants to test the hypothesis that alcohol reduces driver's reaction time. On a closed ... (Read 391 times)

Beheh

  • Hero Member
  • *****
  • Posts: 520
Reply #10 on: Jun 15, 2020
A researcher wants to test the hypothesis that alcohol reduces driver's reaction
time.  On a closed driving course, the researcher studies 50 drivers with alcohol in
their system and 50 drivers with no alcohol in their system, while measuring
reaction time in milliseconds.  The average reaction time for drivers with alcohol in
their system was 142 milliseconds with a standard deviation of 7.45. The average
reaction time with no alcohol in their system was 134 milliseconds with a standard
deviation of 6.81.

What are your conclusions about the null hypothesis?
Elementary Statistics in Criminal Justice Research ¦ Fox, Levin, Forde ¦ 4th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

C.mcnichol98

  • Sr. Member
  • ****
  • Posts: 314
Reply #11 on: Jun 15, 2020
We are able to reject the null hypothesis. There appears to be a relationship between
having alcohol in one?s system and reaction time.  Drivers with alcohol in their systems
will have a slower reaction time than those with no alcohol in their systems.


Pages: 1 2  All   Go Up
« previous next »
 

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?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

An example of color blindness test. A person with red-green color blindness would not be able to dis An example of color blindness test. A person with red-green color blindness would not be able to dis
A test for iconic sensory memory A test for iconic sensory memory
Mantoux tuberculin skin test. Mantoux tuberculin skin test.
Earth scientists have devised a scheme to divide the planet’s natural history into distinct time ... Earth scientists have devised a scheme to divide the planet’s natural history into distinct time ...
a) Radioimmunosorbent test (RIST); (b) radioallergosorbent test (RAST). a) Radioimmunosorbent test (RIST); (b) radioallergosorbent test (RAST).
The frequency of aneuploidy changes dramatically over developmental time. Between 6 to 8 weeks and 2 The frequency of aneuploidy changes dramatically over developmental time. Between 6 to 8 weeks and 2
Video: Embryonic development - Week 4

For a complete list of videos, visit our video library