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4 years ago

How to get rid of fluid behind the eardrum?

1 answer:

6 0

Like water? You just tilt you head 2 the left or right depending on where the fluid is that how you do it I think if that what you are talking about.

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What is one part of the heath triangle?<br> A.Physical<br> B.eating<br> C. singing<br> D.Heath food

antoniya [11.8K]

Answer:

Physical

Explanation:

One part of the health triangle is physical health

6 0

4 years ago

A health worker is interested in determining if omega-3 fish oil can help reduce cholesterol in adults. She obtains permission t

Dominik [7]

Answer:

Observational study
See explanation below
No

Explanation:

This is an observational study as the health worker did not conduct any experiment but instead, she observed and studied patients data and drew her inferences from the available data.
A confounding is an external variable in an experiment that can change the effect of the dependent and independent variable. They can ruin an experiment if not accounted for and suggest false correlations, and introduce bias as it is one of the sources of bias in epidemiological studies. For example, using the study above, it is said that the cholesterol reading of the group not taking omega-3 fish oil is 18 points higher than the other; a confounding variable would be like an extra independent variable unaccounted for which could influence the outcome of the study like the age of the patients, family history, diet etc. All these extra variables can influence the cholesterol level of the patients but yet were unaccounted for and if inferences are made from the observations, the correlations could be false.
Even though the 18 point difference is statistically significant, they cannot conclude that omega-3 fish oil is the cause because of the effect of confounding in experiments and the many external variables like lifestyle, diet, smoking etc. which could influence the outcome of the research that were unaccounted for

7 0

3 years ago

Question 1 (2 points)

kaheart [24]

1. True
2. True
3. False
4. True
5. True

8 0

3 years ago

Read 2 more answers

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

sukhopar [10]

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

7 0

4 years ago

Fetal alcohol syndrome definition

Semmy [17]

A congenital syndrome caused by excessive consumption of alcohol by the mother during pregnancy, characterized by retradation of mental development and of physical growth, particularly of the skull and face of the infant.

5 0

4 years ago