A random sample of ni = 262 people who live in a city were selected and 104 identified as a "dog person." A random sample of n2 = 117 people who live in a rural area were selected and 50 identified as a "dog person." Find the 99% confidence interval for the difference in the proportion of people that live in a city who identify as a "dog person" and the proportion of people that live in a rural area who identify as a "dog person." Round answers to to 4 decimal places. < pi P2 <

Q: In Cleveland, a random sample of 73 mail carriers showed that 10 had been bitten by an animal during…

A: Given, n1 = 73 x1 = 10 n2 = 80 x2 = 16 confidence level = 1 - α = 0.95 α = 0.05α2 = 0.025   To find,…

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A:

Q: A surprising number of young adults (ages 19 to 25) still live in their parents' homes. A random…

A: Required conditions: n1&gt;30 n2&gt;30 n1*p1^&gt;=10 n1*(1-p1^)&gt;=10 n2*p2&gt;=10 n2*p2^&gt;=10

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A: Given that there are 2344 adults and 715 say they believe in UFOs. Consider the sample proportion,…

Q: Find the 95% confidence interval for the difference in the two population means X1 = 12, s1 = 2.2,…

A: The sample mean of group 1 is The sample standard deviation of group 1 is The sample size of group 1…

Q: An accounting firm has 1200 clients. From a random sample of 120 clients, 110 indicated very high…

A: Given : An accounting firm has 1200 clients So,  Population size (N) = 1200 Sample size (n) = 120…

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A: Given that In a recent survey of 200 households, 172 had central air conditioning That is…

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A: Data for resident students:The sample size is The number of successes (being women)  is Data for…

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A: We have been provided with the following information about the adults who describe themselves as…

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A: It is given asFavourable cases, x = 20901Sample size, n = 45535Confidence level = 99%

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A: It is given that sample size (n) is 282 and x is 109.

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A:

Q: If a school district takes a random sample of 89 Math SAT scores and finds that the average is 497,…

A: From the provided information, Sample size (n) = 89 Sample mean (x̅) = 497 Population standard…

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A: given data n1 = 276  x1 = 112p^1 = x1n1 = 112276 = 0.4058       n2 = 117  x2 = 70p^2 = x2n2 = 70117…

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A: Margin of error: ME=Zα/2 * √p̂(1-p̂)/n

Q: A surprising number of young adults (ages 19 to 25) still live in their parents' homes. A random…

A:

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A: We have given the following statement about the survey.

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A:

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A:

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A: Sample size n=3878Favorable cases x=3241

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A: According to the given information, we have Total number of U.S. adults = 1219 354 said that their…

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A: For the city sample:The sample size The number of "dog persons" in the city For the rural sample:The…

Q: A recent survey of two countries in South America reports on data about foreign-born citizens. Of…

A: Given  X1=125, n1=500, X2=75, n2=800 p1cap=X1/n1 and p2cap=X2/n2   Alpha=0.05=level of significance…

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A: The formula for confidence interval of the difference between two sample proportions is given by…