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4 years ago

Which of these contains the most authoritative data on diet and weight loss

Health

2 answers:

Alika [10]4 years ago

8 0

I think that the answer would be C, a fitness training blog.

Jlenok [28]4 years ago

5 0

C, a fitness training blog.

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Answer the question about obesity.

Rama09 [41]

<h2>Answer:</h2>

Obesity affects 17% of all children and adolescents in the United States, *which is three* times the prevalence from just one generation ago.

hope this help you ^^

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4 years ago

Which of the following describes a nuclear stress test?

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I THINK ITS A I HOPE IT HELPS. :)

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4 years ago

Name this tissue. i’ll make someone brainiest please helppp

Bad White [126]

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3 years ago

What organizational structure would a small physician's office likely use?

earnstyle [38]

For a small physician's office , it's probably best to use Sole proprietorship structure. It's a type of business structure that is owned and run by one person. It's easier to manage and it will bring less unnecessary expenses for the office

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4 years ago

In Exercise 33, you used a confidence interval to examine the effectiveness of a vaccine against ear infections in babies. Suppo

yulyashka [42]

Answer:

Part a: The two hypotheses are $H_o: p_1=p_2$ and $H_1: p_1 < p_2$ .

Part b: The Null hypothesis is rejected and Vaccines appear effective

Part c: As in this case the null hypothesis is rejected in the part b, thus the only possibility of error is type I error.

Part d:Children will get a vaccine which is not effective.

Explanation:

Part a:

The two hypothesis will be tested as indicated as null hypothesis and alternative hypothesis

The null Hypothesis is given as that the population proportion for both the groups is same such that

$H_o: p_1=p_2$

The alternative hypothesis is the percentage of people who have got vaccination is less than those who have not got the vaccination such that

$H_1: p_1 < p_2$

So the two hypotheses are $H_o: p_1=p_2$ and $H_1: p_1 < p_2$ .

Part b:

The confidence interval in the exercise 33 is calculated as (-0.008,-0.0470) as it does not contain the value of zero thus the difference is present which indicates that the two proportions are not same

Thus the Null hypothesis is rejected and Vaccines appear effective.

Part c:

There are two types of errors as

Type I where the null hypothesis H_o is wrongly rejected and it is true.

Type II where the null hypothesis H_o is not rejected and it is false.

As in this case the null hypothesis is rejected in the part b, thus the only possibility of error is type I error.

Part d:

If the conclusion is wrong this indicates that the null hypothesis was true. i.e. There is no difference in population percentage of children with or without vaccination. This means that children will get a vaccine which is not effective.

8 0

4 years ago