1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
padilas [110]
3 years ago
14

A doctor wants to estimate the mean HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimat

e the mean HDL cholesterol within 2 points with 99 % confidence assuming s equals 11.6 based on earlier​ studies? Suppose the doctor would be content with 90 % confidence. How does the decrease in confidence affect the sample size​ required?
Health
1 answer:
sukhopar [10]3 years ago
7 0

Answer:

The number of needed subjects to estimate the mean HDL= 31

Explanation:

Given that:

. standard deviation, s= 11.6

. Margin of error, ME = 2

s= 11.6

ME = 2

. The 90% margin of error is defined as:

ME = Z₀,₉÷₂ X σ÷√η

coeficient = (0,90/2)

2= 1.645 x 11.6/√η

√η= (1.645 x 11.6)÷ 2

 η= √9.541

 η= 30.888

 η≈31

You might be interested in
Which of these best describes an anorexic person's body image?
ArbitrLikvidat [17]

Answer:True

Explanation:

3 0
3 years ago
Which of the following is not an effect of taking steroids?
AveGali [126]
Increase in height is not an effect of taking steroids
4 0
3 years ago
Read 2 more answers
Health effects from smoking
ZanzabumX [31]

Answer:       Smoking can cause fatal diseases such as pneumonia, emphysema and lung cancer. Smoking causes 84% of deaths from lung cancer

Explanation:

3 0
3 years ago
Self -analyzed the factors that
Fittoniya [83]

Answer:

ok

Explanation:

please mark me branlist please send me the

5 0
2 years ago
Who is most likely to get a torn ACL?
Vlad1618 [11]

Answer:

I think D is the right answer

D 40 year old Male who had torn his left ACL in the past and has moderate activity rate

Explanation:

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em>

7 0
3 years ago
Read 2 more answers
Other questions:
  • True or False: A set is one complete motion of an exercise.
    8·2 answers
  • The completion of __________ form is needed to document your voluntary request for termination of Medicare coverage as permitted
    9·1 answer
  • Which kind of muscle fibers contract rapidly? <br> a)fast twitch <br> b)slow twitch
    5·2 answers
  • Why is cyberbullying more psychologically harmful than other types of bullying
    7·2 answers
  • What is the appropriate treatment for a deep bleeding wound
    5·1 answer
  • What kind of study has a post-test but no baseline measurement?
    14·1 answer
  • Name calling based on prejudice is known as
    6·2 answers
  • Which of the following is a safety rule in diving?
    11·2 answers
  • Physical fitness is
    12·1 answer
  • How much time should an adult perform moderate exercise each week, in addition to strength training?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!