According to the Center for Disease Control (CDC), the percent of adults 20 year

Q: According to the Center for Disease Control (CDC), the percent of adults 20 year

The statistical software output for this problem is: One sample proportion summary hypothesis test: p : Proportion of successes H0 : p = 0.69 HA : p 0.69 Hypothesis test results: Since p - Value is very high, we do not reject Ho. Hence The answer is No. Proportion Count Total Sample Prop. Std. Err. Z-Stat P-value p 98 150 0.65333333 0.037762415 -0.97098309 0.3316

ID: 3320955 • Letter: A

Question

According to the Center for Disease Control (CDC), the percent of adults 20 years of age and over in the United States who are overweight is 69.0% (see http://www.cdc.gov/nchs/fastats/obesity-overweight.htm). One city’s council wants to know if the proportion of overweight citizens in their city is different from this known national proportion. They take a random sample of 150 adults 20 years of age or older in their city and find that 98 are classified as overweight.

Should the city council support their claim that the differ from the national average based on the results of their hypothesis test?

A) Yes

B) No

Explanation / Answer

The statistical software output for this problem is:

One sample proportion summary hypothesis test:
p : Proportion of successes
H0 : p = 0.69
HA : p 0.69

Hypothesis test results:

Since p - Value is very high, we do not reject Ho.

Hence

The answer is No.

Proportion Count Total Sample Prop. Std. Err. Z-Stat P-value p 98 150 0.65333333 0.037762415 -0.97098309 0.3316

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According to the Center for Disease Control (CDC), the percent of adults 20 year

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According to the Center for Disease Control (CDC), the percent of adults 20 year

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