A random sample of 274 elephants who are in a preserve in Kenya were selected and 94 identified as female with calves. A random sample of 108 elephants who are in a preserve in Tansania were selected and 66 identified as female with calves. Find the 95% confidence interval for the difference in the proportion of elephants who are in a preserve in Kenya that are identified as female with calves and the proportion of elephants who are in a preserve in Tansania that identify as female with calves. Round answers to to 3 decimal places. P2 - Error- 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,…

Q: A department store finds that in a random sample of 200 customers, 60% of the sampled customers had…

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Q: A large private university and a large public university selected random sample of incoming freshman…

A: Given:  p1 is the proportion of all entering freshmen at the private university who graduated in the…

Q: In Cleveland, a random sample of 74 mail carriers showed that 12 had been bitten by an animal during…

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Q: survey of 1000 students concluded that 274 students chose a professional baseball team, A, as his or…

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Q: In a poll of 600 voters in a campaign to eliminate non-returnable beverage containers, 210 of the…

A: Note: Hi there! Thank you for posting the question. As there are several independent questions,…

Q: A random sample of 4000 U.S. citizens yielded 2250 who are in favor of gun control legislation.…

A:

Q: a recent survey at a small Midwestern college, 39 of 140 randomly selected students revealed that…

A: Here it is given that- total number of observations(n) = 140 Proportion (p) = 39140= 0.28 So, q =…

Q: In a study of 480 households, 168 households were found to have 4 cell phones. Find a 95% confidence…

A: Given: x=168 n=480 p^=xn=168480=0.35

Q: Based on a random sample of 400 voters in which 285 said they favored the idea of a new city…

A: Given: n = 400 x = 285 Confidence level = 97%

Q: In a random sample of 500 people eating lunchbat a cafeteria on various fridays, it was found that…

A: Given X=160 n=500 P=X/n

Q: Of 380 randomly selected medical students, 21 said that they planned to work in a rural community.…

A: Sample proportion=p^=21380z=critical value for 95% confidence interval=1.96n=sample size=380

Q: The Graduate Schools take a random sample of recent MS graduates (n=135) and finds that 12 of these…

A: Givenn=135x=12confidence interval = 90%p^=xn=12135=0.0889α=1-0.90=0.10α2=0.05zc=zα2=z0.05=1.6449…

Q: A random sample of 75 college students of MSU is selected and 16 are found to have motorcycles on…

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

Q: A survey of 1,898 adults with lawns conducted by a researcher found that 45% of the adults said that…

A: Obtain the 95% confidence interval of the true proportion who said that dandelions were the toughest…

Q: Find the 68% confidence interval for the percentage of leaky diapers with a sample of 100 diapers…

A: Let X be the number of defective diapers and n is the number of diapers. From the given information,…

Q: Of 380 randomly selected medical​ students, 21 said that they planned to work in a rural community.…

A: Given that 380 randomly selected medical​ students, 21 said that they planned to work in a rural…

Q: Find a 95% confidence interval for the proportion of renters.

A: It is given that  Favourable cases, X = 360 Sample size, n = 600 Confidence interval = 95%

Q: Of 380 randomly selected medical students, 21 said that they planned to work in a rural community.…

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Q: A survey found that 33 of 66 randomly selected women and 37 of 66 randomly selected men follow a…

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Q: Of 400 randomly selected medical students, 21 said that they planned to work in a  rural community.…

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Q: Of 91 adults selected randomly from one town, 60 have health insurance. Find a 90% confidence…

A: From the provided information, Sample size (n) = 91 Out of which 60 have health insurance. Sample…

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Q: Of 600 bags of rice randomly selected from a train after a wreck, 230 were damaged in the train…

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Q: Based on the results of a survey conducted by a group of researchers, the proportion of female…

A: Confidence interval is a process of inference which uses the sample statistics to find the range of…

Q: A local health centre noted that in a sample of 400 patients, 80 were referred to them by the local…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: A survey found that 39 of 66 people who don't drink coffee often have trouble sleeping and 44 of 88…

A: Solution: Let X1 be the number of noncoffee drinkers who have trouble sleeping, n1 be the sample…

Q: A random sample of records of 10 night shifts at the emergency section at the Nairobi hospital gave…

A: Given,Sample size(n)=10sample mean(x)=20.6stndard deviation(s)=2.7968degrees of freedom…

Q: A medical study showed that 57 of 300 persons failed to recover from a given disease. Find a 95%…

A: Given data n=300 x=57 confidence interval is 95%

Q: In a random sample of 145 students, we find that 53% have attended a baseball game at some point in…

A: Given,sample size (n)=145sample proportion(p^)=0.53α=1-0.95=0.05α2 =0.025z0.025 =1.96

Q: To find the proportion of San Diegans subscribed to Disney+ in 2019, a researcher randomly selected…

A: Given that, n=200 p^=101200=0.505

Q: Suppose a random sample of 459 married couples found that 307 had two or more personality…

A: Introduction - Confidence interval for two proportion CI=Sample difference ±critical difference…

Q: A researcher who was interested in knowing how many people in a city supported a new retirement plan…

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Q: The manager of a local fast-food restaurant is concerned about evil customers who ask for a free cup…

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Q: A survey of 503 women shoppers found that 46% of them shop on impulse. What is the 99% confidence…

A: Given : Sample Size, n = 503 confidence level,c=0.99

Q: In a random sample of 200 females and 100 males who watched a certain television program, 94 females…

A: For Females : Out of 200 females , X = 94 females indicated they like it Sample proportion 1 =…

Q: To find the proportion of San Diegans subscribed to Disney+ in 2019, a researcher randomly selected…

A:

Q: A random sample of 55 voters is taken, and 28 are found to be in favour of a particular political…

A: Proportion is almost similar to the concept of probability. Proportion is a fraction of the…

Q: A poll found that82​%of a random sample of 1093 adults said that they believe in ghosts. a.…

A: a) Given that n=1093p^=82%=0.82Confidence level=99%=0.99Significance level=0.01 The z critical value…

Q: In a certain state, a survey of 500 workers showed that 38% belonged to a union.  Find the 93%…

A: Computation of critical value: 1-α=0.93α=0.07α2=0.0351-α2=0.965 The critical value of z-distribution…

Q: To find the proportion of San Diegans subscribed to Disney+ in 2019, a researcher randomly selected…

A: Given: p=population proportionp^=101200n=200α=0.05z=1.96

Q: In a sample of 500 Canadians, 225 say they would rather retire in Florida than in Canada. Calculate…

A:

Q: In a random sample of 1250 adult drivers, 450 said that they would cut their driving by 10% if this…

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Q: A local health centre noted that in a sample of 400 patients, 80 were referred to them by the local…

A:

Q: A random sample of 75 college students of MSU is selected and 16 are found to have motorcycles on…

A: As per our guidelines we are suppose to answer only one question Givensample size(n)=75no.of…

Q: Of 380 randomly selected medical students, 21 said that they planned to work in a rural community.…

A: Here we need to construct a 95% confidence interval for the population proportion. Here the sample…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.