A sample of students is to be selected to estimate the proportion who have recieved a medical examination during the past year.  The survey found that x =567 students were examined during the past year.  Construct a 95% interval estimate of the population proportion if the sample size was n=700

Q: From a sample of 101 items, 27 are defective. The point estimate of the population proportion…

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Q: Your professor wishes to estimate the proportion of high school students enrolled in college-level…

A: Given: margin of error of 3.5 percent 99% confidenp p= 18.3%

Q: Let p be the proportion of female students who are female at LSU. a. If you have no preliminary…

A: Margin of error =E =0.09 95% confidence level.

Q: A recent study indicated that 20% of 133 women over age 55 in the study were widows.  a. How large a…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: From provided information; Margin of error M.E = 4.5% that is 0.045 Confidence level= 90% The z…

Q: Insurance companies are interested in knowing the percent of all drivers who always buckle up before…

A: According to the given information in this question We need to find the minimum number you would…

Q: ou want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: A survey of 2310 adults in a certain large country aged 18 and older conducted by a reputable…

A: Given information- We have given that in a survey of 2310 adults in a certain large country aged 18…

Q: you want to obtain a sample to estimate a population proportion. based on previous evidence, you…

A:

Q: he manager of a magazine wants to estimate the percent of magazine subscribers who approve of a new…

A: Formula to find confidence interval is

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A:

Q: The brand manager for a brand of toothpaste must plan a campaign designed to increase brand…

A: Given information- Margin of error, E = 7% = 0.07 Confidence level, c = 80% Since nothing is known…

Q: Determine the minimum sample size needed if we want to estimate the population percent of students…

A:

Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…

A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…

Q: In a random sample of 73 items produced by a machine, the quality control staff found 25 of them to…

A: Sample proportion is always a point estimate of population proportion

Q: a random sample of 82 professional actors, it was found that 45 were extroverts. Let p represent the…

A: Let  X be number of extrovert out the number 'n' Then  Proportion of extrovert ( p^)= x/n

Q: A random sample of medical files is used to estimate the proportion p of all people who have blood…

A: Margin of error(E), E=z×p×qn From the above E, find n, n=zE2×p×q Here, E=0.04 There is no…

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: According to the provided information, Proportion is unknown. So, worse case proportion is 50%. p =…

Q: researcher wishes to estimate the proportion of the adult population of the U.S. has sleep…

A: E=0.03 99% confidence interval for z=2.576 p=0.5

Q: A sample of two hundred and fifty families showed that ninety one owned at least one car. Find an…

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Q: A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given: The margin of error E=0.05 Confidence level = 90% Since the population proportion is not…

Q: If you want to be 95​% confident of estimating the population proportion to within a sampling error…

A: z-critical value at alpha(0.95) = 1.96 margin of error =0.08   p = 0.5

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: For a 99% confidence interval, the corresponding critical value is calculated using excel:

Q: A random sample of medical files is used to estimate the proportion p of all pe who have blood type…

A:

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month.…

A: The objective of this question is to estimate the proportion of oil tankers that had spills. This…

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.