In a recent year, a study found that 76% of adults ages 18–29 had internet access at home. A researcher wanted to estimate the proportion of undergraduate college students (18–29 years) with access, so she randomly sampled 188 undergraduates and found that 160 had access. Estimate the true proportion with 99% confidence. Round intermediate answers to five decimal places. Round your final answer to one decimal place.   question:   ___%

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

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Q: BACKGROUND: A researcher is conducting a study on features of learning technology and has chosen to…

A: Let µ1 and µ2 be the mean effect of Audio-supplement and visual supplement on final exam grade…

Q: A quick quiz consists of a multiple-choice question with 5 possible answers followed by a true/false…

A: Given dataMultiple choice questions with 5 possible answers followed by a true and false5 possible…

Q: You want to know what percentage of students own pets at your university. In asking 10 random…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: n a population-based cohort study, an entire community was interviewed regarding smoking habits and…

A: Here the given table is   we have to Calculate the proper measure of association of smoking and lung…

Q: According to past reports 48% of employees own a car. In a random sample of 250 employees, how many…

A: Total no.of employees=250 The percentage of employees own a car=0.48

Q: How do you get online? A 2013 Pew Research survey of802 teens found that, among teens aged 12–17,…

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Q: ​Claim: Most adults would erase all of their personal information online if they could. A software…

A: Introduction:Denote p as the true proportion of adults who would erase all of their personal…

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 458 green beans…

A: Given that Total beans=458+162=620 Green beans=458 Yellow beans=162

Q: A poll showed that 68.5% of Americans say they believe that Marilyn Monroe had an affair with JFK.…

A: Given information- Percentage of Americans believe that Marilyn Monroe had an affair with JFK =…

Q: A research company claims that 55% of American watch TV. You test this claim by randomly sampling…

A:

Q: The owner of a local bar specializing in alternative music wanted to determine the average age of…

A: t 95% confidence level, the z value is 1.96 which can be obtained by using the standard normal…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: From the given data we can conclude that, Proportion = 25% Margin of error = 1.3%

Q: A research firm needs to estimate within 3% the proportion of junior executives leaving large…

A: From the given information , E = 3% = 0.03 = 0.41Confidence level , C = 0.95

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 455 green beans…

A: Solution-; Given: Number of green beans =455           Number of yellow beans =141           Total…

Q: MCQS: 1) For t=2.778 and sample size=8, the corresponding r value is:"   A 0.65   B 0.75   C…

A: 1) For t=2.778 and sample size=8, the corresponding r value is:"   A 0.65   B 0.75   C…

Q: Recently, 18.3% of visitors to the Travelocity website hailed from the Google search engine. A…

A: It is given that Sample size n = 130 Population proportion p = 18.3% = 0.183

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Given: The proportion of people who like dark chocolate more than milk chocolate is 32% Margin of…

Q: in a recent year, a study found that 75% of adults ages 18–29 had internet access at home. A…

A: Solution: Let X be the number of undergraduates had internet access and n be the sample number of…

Q: The 2004 General Social Survey asked a random sample of 977 adult Americans how often they feel…

A: Given: The value of n is 977. The value of x is 304. The value of p^ is estimated as, p^=xn The test…

Q: Within what interval would you expect the sample mean to fall, with 98 percent probability?

A:

Q: what range of raw scores makes up the middle 40%

A: The middle 40% means, the scores lie between 30th and 70th percentile. From stand normal, z-score…

Q: In a recent year, a study found that 75% of adults ages 18–29 had internet access at home. A…

A: The following information has been provided: The population proportion is p=0.75 The sample size is…

Q: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

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A:

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Accuracy of the test is 86% Inaccuracy of the test = 14% N = Total number of patients = 5000…

Q: According to a Mobile Marketing Company's survey of 2000 people, 60% said that they use their mobile…

A: We have to find nom of successes in given sample.

Q: he preeminent basketball philosopher Rasheed Wallace popularized the phrase, "Ball don't Lie." This…

A: p = 0.785 n = 177

Q: A sample of 276 people was surveyed. People are classified according to their political ideology…

A: Given Data : Number of right wing people = 47 + 25 + 19 = 91 Number of people who are indifferent…

Q: A researcher wanted to estimate the proportion of undergraduate college students (18– 29 years) with…

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Q: 395 out of 500 women were in favor with the new brand of skin whitening. What is the point estimate…

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Q: A researcher wants to do a study to see what the proportion of vaccinated people is in a certain…

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Q: You want to estimate the proportion of home accident deaths that are caused by falls. How many home…

A: Formula for the sample size needed to estimate a population proportion is

Q: The table to the right is based on the assumption that 1% of breast tumors are malignant. It also…

A:

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Here the proportion of people liking dark chocolate is 37% with a margin of error 2.5%  So, the…

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Given: Accuracy of the test is 86% Inaccuracy of the test = 100-86% = 14% N = Total number of…

Q: Astudy of 390 Students showed that the probubility of majors in the fist twe years is a63 i Find a…

A: The sample size n = 390. The probability p is 0.63 The absolute value of Zα/2 is 2.58 using the…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

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.