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castortr0y [4]
3 years ago
6

In 2008, the Centers for Disease Control and Prevention reported that 34% of adults in the United States are obese. A country he

alth service planning a new awareness campaign polls a random sample of 750 adults living there. In this sample, 228 people were found to be obese based on their answers to a health questionnaire. Do these response provide strong evidence that the 34% figure is not accurate for this region?
Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0

Answer: No, these response does not provide strong evidence that the 34% figure is not accurate for this region.

Step-by-step explanation:

Since we have given that

p = 0.34

x= 228

n = 750

So, \hat{p}=\dfrac{x}{n}=\dfrac{228}{750}=0.304

So, hypothesis would be

H_0:p=\hat{p}\\\\H_a:p\neq \hat{p}

So, test statistic value would be

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\\\\z=\dfrac{0.304-0.38}{\sqrt{\dfrac{0.38\times 0.62}{750}}}\\\\z=\dfrac{-0.076}{0.0177}\\\\z=-4.293

At 95% confidence , z = 1.96

So, 1.96>-4.293.

So, we accept the null hypothesis.

No, these response does not provide strong evidence that the 34% figure is not accurate for this region.

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JulijaS [17]

。☆✼★ ━━━━━━━━━━━━━━━  ☾

Work out the total change:

76 - 46 = 30

Divide this by the number of days:

30/5 = 6

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Thus, the answer is option B

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8 0
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You have $10 in your bank account. It doubles in the first month and every month thereafter. How much money will you have after
madam [21]
After 5 months you will have $160

so,
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10×2 =20
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hence proved that after 5 months you will have $160
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3 years ago
Could anyone please help me with this?
Alborosie

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3,7,9

Step-by-step explanation:

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3 years ago
Josh leans the ladder against a side of her house which is 10 feet. If the base of the latter is 3 feet away from the house, how
Galina-37 [17]

Answer:

\sqrt{109}

Step-by-step explanation:

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We're trying to find the hypotenuse, which is given by Pythagoras' Theorem:

a^2 + b^2 = c^2\\3^2 + 10^2 = x^2\\109 = x^2\\x = \sqrt{109}

4 0
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