For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a marketing survey, a random sample of 724 women shoppers revealed that 630 remained loyal to their favorite supermarket during the past year (i.e., did not switch stores). (a) Find a 95% confidence interval for p. (Round your answers to three decimal places.) lower limit       upper limit       (b) What is the margin of error based on a 95% confidence interval? (Round your answer to three decimal places.)

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

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Q: Out of a sample of 600 adults aged 18 to 30, 162 still lived with their parents. Based on this,…

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Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

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Q: A poll of n = 500 randomly selected elementary school students resulted in 110 of them stating…

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Q: Consider a sample of 100 people and subsequently a confidence interval calculated from the sample.…

A: The formula for calculating confidence interval is as follow:

Q: In a marketing survey, a random sample of 728 women shoppers revealed that 630 remained loyal to…

A: The sample proportion is calculated as shown below:

Q: In a​ poll, 51​% of the people polled answered yes to the question​ "Are you in favor of the death…

A:

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: (a)   Obtain the 90% confidence interval for the proportion of all caterpillars that eventually…

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A:

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Solution: a. Let X be the number of caterpillars that eventually become butterflies and n be the…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Given n=447 X=46 Confidence level at 90%=1.64

Q: A magazine article conducted a survey of 1000 people in Washington State and found that 26% of the…

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Q: Kim wants to determine a 80 % confidence interval for the true proportion ? of high school students…

A:

Q: A history teacher records the SAT scores of all 87 of her students. The data is used to construct a…

A: For calculating the confidence interval, we need to satisfy the following conditions: Independence…

Q: A researcher is interested in constructing a 99% confidence interval for the proportion of Alzheimer…

A: Given Information :  A researcher is interested in constructing a 99% confidence interval for the…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A:

Q: Round your answers to two decimal places. A. With 90% confidence the proportion of all people who…

A: It is given that  Sample size , n = 800 Favourable cases, X = 382 Sample proportion, p^ = X/n  =…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: It is given that sample size (n) is 354and x is 52.

Q: Use the following to answer the next two questions. A 2020 poll found that 520 out of 824 randomly…

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Q: want to estimate the proportion of all college students who traveled during spring break. survey a…

A: Given that Sample size n =200 Favorable cases x =116 Sample proportion p^=x/n =116/200 =0.58

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: Kim wants to determine a 95 percent confidence interval for the true proportion p of high school…

A: Margin of error =E =0.03

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: sample size(n)=365 x=42 confidence level=95% sample proportion(p^)=42365≅0.1151

Q: Out of 800 adults selected randomly from one town, 272 have health insurance. Find a 90% confidence…

A: Given,   The sample proportion is,

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Given X=446 n=43

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: Solution: Given information: n= 371 Sample of caterpillars  x = 45 caterpillar lived to become…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: It is been asked to find a 99% confidence interval for the proportion of all caterpillars that…

Q: Suppose you are told that a 95% confidence interval for the average price of a gallon of regular…

A: Given : 95% confidence interval for the average price of a gallon of regular gasoline in your state…

Q: You want to estimate the proportion of current OSU students who were born outside of Ohio. You…

A: Given: n= 300 At 99.0 % confidence level , z score= 2.576 Need to find MARGIN OF ERROR for…

Q: Suppose that 18% of a random sample of 2307 Miami residents said that they will donate blood in…

A: The sample proportion is given as 0.18. The sample size is given as 2307. The two-tailed z-critical…

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: It is given that sample size (n) is 437 and x is 59.

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A:

Q: ou are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: Solution: Given information: n= 409 Sample size of caterpillars  x= 58  caterpillars become…

Q: uppose you want to estimate the proportion of employed adults who would continue working if they won…

A: given data, sample proportion p^=0.59 2E=0.3E=0.32=1.5CI=0.99α=1-0.99=0.01we have to find out the…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A:

Q: 90% confidence the proportion and caterpillars thất tived to become a butterny is between b. If many…

A: n = 377 p = 42/377 =0.1114