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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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

Q: In a survey of 2344 ​adults, 715 say they believe in

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…

Q: In a recent survey of 200 households, 172 had central air conditioning.  Find the 85% confidence…

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

Q: A recent survey showed that from a sample of 500 packages delivered by a Postal Service, 480 were…

A: Given data X = 480 Sample size (n) = 500

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A: From the given information, The sample size is 75. Out of 75 students, 16 are found to have…

Q: Ten medical universities in Turkey were surveyed. The sample shows that from 250 resident students,…

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

Q: 67% out of 150 pupils from school A passed an exam; 62% of 120 pupils at school B passed. Estimate…

A: Given : n1 = 150 n2 = 120 confidence level,c=0.9

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

Q: A survey of 45,535 adults showed that 20,901 were very concerned abut climate change. What is the…

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

Q: when 282 college students are randomly selected and surveyed, it is found that 109 own a car. find a…

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

Q: If a school district takes a random sample of 80 Math SAT scores and finds that the average is 497,…

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…

Q: A random sample of n₁ = 276 people who live in a city were selected and 112 identified as a "dog…

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

Q: You are testing the claim that the proportion of men who own cats is smaller than the proportion of…

A: As per our company guidelines we are supposed to answer only first question. Kindly repost other…

Q: A random sample of n₁ = 252 people who live in a city were selected and 74 identified as a "dog…

A: Given: n1 = 252 X1 = 74 n2 = 111 X2 = 66 Confidence level = 99% Formula Used: Confidence interval =…

Q: A sample of 400 homeowners includes 124 that expect their home to increase in value in the next…

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:

Q: In a study of the relationship between birth order and college success, an investigator found that…

A: Given that  Sample sizes n1=180 , n2=100 Favorable cases x1=126 , x2=54

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

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A:

Q: A research poll of 1501 adults showed that 1051 of respondents believe in global warming. Find a 98%…

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Q: In a random survey of 2221 North Americans 689 of them had blood type A+. Construct a 94% Confidence…

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Q: The ability to find a job after graduation is very important to GSU students as it is students at…

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

Q: A scientist conducts an experiement with flowers, one sample of flowers consisted of 278 red dahilas…

A: Given that  Sample size n =278 Favorable cases x =108 Sample proportion p^=x/n  =108/278 =0.3885

Q: Round answers to to 4 decimal places. pi - p2

A: Given : n1 = 278 x1 = 98 n2 = 109 x2 = 65 confidence level,c=0.9…

Q: In survey of 7000 women, 4431 says they change their nail polish once a week. Construct a 95%…

A:

Q: In a survey of 1219 U.S. adults, 354 said that their favorite sport to watch is football. Construct…

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Q: Dr. Soria surveyed 34,000+ college students about their rates of housing insecurity during the…

A: The proportion of college students experiencing housing insecurity at that time is 0.22, and the…

Q: A random sample of n₁ = 269 people who live in a city were selected and 88 identified as a "dog…

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…

Q: A random sample of n - 236 people who live in a city were selected and 81 identified as a "dog…

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