Note: Follow the Four-Step process in estimating the population proportion. III. Food Combo In a certain food stall, 278 out of 500 randomly selected consumers to indicate their preference for a new kind of food combination. Use a 99% confidence interval to estimate the true proportion ρ who like the new food combination. What course of actions could concerned individuals like entrepreneurs take based on the results of your estimate

Q: If n=400 and X=100​, construct a 95​% confidence interval estimate for the population proportion.

A: Given,x=100n=400sample…

Q: Suppose a consumer advocacy group wants to conduct a survey to find if the proportion of consumers…

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Q: If you need to make a 98% confidence interval for a proportion, and the margin of error is to be no…

A: Given information:  Confidence level = 98% Margin of error (e) = 0.025 Let proportion (p) = 0.5 The…

Q: In a survey of 3,723 adults concerning complaints about​ restaurants, 1,469 complained about dirty…

A: Critical values: By using the standard normal table of Z, the critical value for two tailed test is,

Q: By law, all new cars must have airbags on both the driver's side and the passenger's side. There is…

A: Given that  n=55 , X=35

Q: If X=127​, σ=26​, and n=38​, construct a 95​% confidence interval estimate of the population​ mean,…

A: The random variable X follows normal distribution. The sample mean is 127. The population standard…

Q: If n = 560 and X = 448, construct a 95% confidence interval for the population proportion, p. %3D…

A:

Q: If n=510 and ˆpp^ (p-hat) =0.19, find the margin of error at a 90% confidence level Give your…

A:

Q: Suppose that the sample size had been​ 240, with x bar=4.1 and s=3.1. Use technology to find a​ 95%…

A: Sample mean = x̅ = 4.1 Sample size = n = 240 Sample S.D = s = 3.1 Standard Error = s/√n  =…

Q: For a research, let's consider the 10-unit sample with s = 32,866 as a preliminary example. For a…

A: Given data,s=32866E=10z-value at 95% confidence is Zc=1.96n=?

Q: Given a sample size of 400 with a mean of 80 and the population standard deviation is found to be 35…

A: We have given that,  Sample mean (x̄) = 80, population standard deviation (σ) = 35 and sample size…

Q: As an aid in the establishment of personnel requirements, the director of a hospital wishes to…

A: Assume, μ  be the population mean number of admissions per 24-hour period. x be the random variable…

Q: If n = 200 and X = 80, construct a 99% confidence interval estimate of the population proportion.…

A:

Q: If n=300 and ˆpp^ (p-hat) =0.52, find the margin of error at a 90% confidence level Give your…

A: Suppose p is the true proportion.

Q: Two men, A and B, who usually commute to work together decide to conduct an experiment to see…

A: Let d= X (route I travel time)−(route II travel time)d=(route I travel time)− Y (route II travel…

Q: If n=300 and X=120​, construct a 99​% confidence interval estimate for the population proportion.…

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Q: If n=490 and ˆpp^ (p-hat) =0.4, find the margin of error at a 90% confidence level Give your answer…

A: Given that, n = 490 p^=0.4 90% confidence level

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: If n=450 and ˆpp^ (p-hat) =0.48, find the margin of error at a 99% confidence level Give your…

A: Given n=450 and p^=0.48, level of significance ɑ=0.01

Q: If n=210 and ˆpp^ (p-hat) =0.86, find the margin of error at a 90% confidence level Give your…

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Q: In a survey of 3485 adults aged 57 through 85​ years, it was found that 86.4​% of them used at least…

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Q: For a population data set, ở a. What should the sample size be for a 97 % confidence interval for u…

A:

Q: A quality controller wants to estimate the proportion of high quaity goods out of a batch of…

A:

Q: The County Development Agency does a survey of all the mobile home manufacturers in Clarion County…

A:

Q: 9. A survey found that out of 900 workers, 150 said they were interrupted by frank phone calls. Find…

A:

Q: Assume that a sample is being used to estimate a population mean μμ. If n = 29, x¯ = 46, and s =…

A: From the provided information, Sample size (n) = 29 Sample mean (x̅) = 46 Sample standard deviation…

Q: If n=150 and ˆpp^ (p-hat) =0.25, find the margin of error at a 90% confidence level

A: n = 150p^ = 0.2590% confidence level

Q: Use the given data to find the minimum sample size required to estimate the population proportion…

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Q: If n=530 and ˆpp^ (p-hat) =0.51, find the margin of error at a 90% confidence level Give your…

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Q: For the confidence interval (24,44), the point estimate is and the margin of error is

A:

Q: If 64% of a sample of 550 people leaving a shopping mall claims to have spent over $25 create and…

A: Given,   Sample size = 550 Sample proportion = 0.64   Critical value: Using z-table, the z-critical…

Q: If n=570 and ˆpp^ (p-hat) =0.51, find the margin of error at a 95% confidence level Give your…

A: n = 570 p^=0.51 95% confidence level

Q: If n=490 and ˆpp^ (p-hat) =0.46, find the margin of error at a 99% confidence level.Give your answer…

A:

Q: If n = 520 and X = 416, construct a 99% confidence interval for the population proportion, p. Give…

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Q: If n = 220 and X = 176, construct a 95% confidence interval for the population proportion, p. Give…

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Q: 4. How large a sample must be taken to estimate the proportion of households in which a cell phone…

A: In probability theory, a normal distribution is a type of continuous probability distribution for a…

Q: If n=580 and ˆpp^ (p-hat) =0.59, find the margin of error at a 95% confidence level Give your…

A: Obtain the margin of error for the 95% confidence interval. The margin of error for the 95%…

Q: Given that the 84% confidence interval for the waiting time (in minutes) of emergency room patients…

A: Point estimate =? Margin of error =?

Q: If x̄=89​, σ=13​, and n=70​, construct a 95​% confidence interval estimate of the population​ mean,…

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Q: It is known that the population range equals 60. With a 95% confidence level, the sample size that…

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Q: If n=31, (x-bar)%3D36, and s=3, construct a confidence interval at a 95% confidence level. Assume…

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Q: If n=200 and ˆpp^ (p-hat) =0.16, find the margin of error at a 95% confidence level Give your…

A: Given Information

Q: If the sample size is large, the confidence interval estimate for the difference between two…

A: True

Q: 9. Find the minimum sample size needed to be within a margin of error of 2% of the population…

A:

Q: If n=130 and ˆpp^ (p-hat) =0.19, find the margin of error at a 95% confidence level Give your…

A:

Q: The birth weights of a sample of newborns were recorded for a group born to mothers who did not get…

A: Solution; The 93% confidence interval for the difference in μ1-μ2 is ( -2.12 pounds , -0.89 pounds)…

Q: In a survey of 3299 adults aged 57 through 85​ years, it was found that 82.2​% of them used at least…

A: The confidence interval at 100 (1 – α) % confidence level gives us an interval estimate about the…

Q: If n=400 and X=80​, construct a 90​% confidence interval estimate for the population proportion.…

A:

Q: If n=360 and ˆp(p-hat) =0.69, find the margin of error at a 95% confidence level

A:

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.