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
What is the best definition of a congenital disorder?
Serjik [45]
B, but i’m not sure!
6 0
3 years ago
Medical doctors and nurses often
Licemer1 [7]

Answer:

speak in simple terms

Explanation:

you can already eliminate the other 3 because they're obviously incorrect

7 0
2 years ago
Read 2 more answers
What is one way that HIV can be transmitted? O A. An HIV-infected patient coughs near another patient without covering her mouth
Ghella [55]

Answer:

I think D

Explanation:

5 0
2 years ago
Read 2 more answers
Why is everybody at my school wearing masks even though the mandate is over?
egoroff_w [7]

Answer: Due to the rise in c.o.v.i.d 19 many people wear mask to protect themselves

Explanation:

6 0
2 years ago
Read 2 more answers
Sandra is experiencing hyperthermia. What is her body most likely using to return to its normal temperature?
vesna_86 [32]

Answer:

sweat and vasodilation

Explanation:

Hyperthermia is when the body is too hot. (Not to be confused with hypothermia, when the body in too cold).

When we sweat, we are releasing moisture, like little bits of water, onto our skin. The water uses up heat energy from the body to evaporate. Because the body loses heat energy, it cools.

Vasodilation is when blood vessels widen. When this happens, the blood vessels are closer to the surface of the skin, allowing heat to escape through and exit the body.

Shivering and vasoconstriction would help to keep a person warm. Shivering makes the muscles on the body move, which increases heat. (Think of exercise, but on a small scale).

Vasoconstriction keeps blood vessels away from the surface of the skin.

7 0
3 years ago
Other questions:
  • When you flex or use a muscle, the _____.
    15·1 answer
  • Substances in cigarettes affect the skin by
    11·2 answers
  • If you contract a contagious illness by coming in contact with infected blood, this would be considered contraction through dire
    14·2 answers
  • You arrive on scene to discover a patient who refuses to allow u to touch her.You feel the patient is in need of medical treatme
    14·1 answer
  • Lifestyle factors that help to avoid health risks
    12·1 answer
  • Please answer this quickly
    7·1 answer
  • How can you improve your financial awareness?
    12·2 answers
  • How can healthcare professionals best maintain the safety of medical equipment? A. ensure equipment is regularly cleaned and dis
    14·1 answer
  • Do you wanna know how I got these scars? My father was a drinker...and a fiend. And one night, he goes off crazier than usual. M
    7·1 answer
  • Explain how each of the following factors influence communication. in your response you should refer to both verbal and nonverba
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!