Approximately 70% of the U.S. population recycles. According to a green survey of a random sample of 250 college students, 204 said that they recycled. At α = 0.01, is there sufficient evidence to conclude that the proportion of college students who recycle is greater than 70%?

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: It is given that the proportion of fatal traffic accidents in the country in which the driver had a…

Q: n. Find the probability that if the wife is watching television, the husband is alse watching…

A: Let us define some events A : husband is watching television. B : husband is not watching…

Q: a)Calculate an unbiased point estimate of Pm. b) We wish to construct a 94 % classical confidence…

A: It is given that Sample size nm = 700 Number of patients with serious symptoms, xm = 226 Confidence…

Q: A group of professors investigated​ first-year college​ students' knowledge of astronomy. One…

A:

Q: According to the U.S. Environmental Protection Agency, a sample of 10 subcompact models shows the…

A: Answer Given 40,33,32,30,27,29,27,23,21,10Sample size [n] =10By using the Chebyshev's rule:Atleast…

Q: A survey in 2019 asked a random sample of U.S. adults if they believed the government was tracking…

A:

Q: It has been found that 1 in 12 inpatients is exposed to MRSA, an infectious bacterial species that…

A: The expected number of exposed patients to MRSA is obtained by multiplying the total number of…

Q: A research center claims that 31% of adults in a certain oountry would travel into space on a…

A:

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: Given thatSample size (n)=113Population proportion=0.34Number of positive BAC(x)=52We have to find…

Q: The quality inspector of a certain factory states that 3% of outgoing products have major defects. A…

A: Given data: n =200 Significance level = 0.05 Given claim: The quality inspector of a certain factory…

Q: University officials hope that changes they have made have improved the retention rate. Last year, a…

A: Suppose we want to compare two populations with respect to a certain attribute. Let X1 and X2 be the…

Q: A research center claims that 31 % of adults in a certain country would travel into space on a…

A: The provided information is:

Q: A researcher claims that more than 50% of adults believe it is very likely that life exists on other…

A: Given that,possible chances (x)=570sample size(n)=1000success rate ( p )= x/n = 0.57success…

Q: A researcher claims that more than 50% of adults believe it is very likely that life exists on other…

A: Given that,possible chances (x)=570sample size(n)=1000success rate ( p )= x/n = 0.57success…

Q: An education researcher claims that at most 3% of working college students are employed as teachers…

A: Solution: From the given information, p-hat=0.04 and n=200. The given claim is that at most 3% of…

Q: did the team significantly improve its free throw percentage (left-tailed test)?

A: Let p1 and p2 be the two population proportions for the early home game and last home game…

Q: a servery of 1200 adults and children in the unittest states has shown that more people have lost a…

A: Population interest :  people have lost a close connection with nature

Q: 14% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of…

A: Given information- Population proportion, p = 0.14 Sample size, n = 391 Significance level, α = 0.05…

Q: A sheriff wanted to see if there was a difference in the number of arrests in a certain city for…

A: Given: The observed frequencies (O) are given below Larceny thefts 38 Property crimes 50 Drug…

Q: 29% of rainstorms are thunderstorms. A climatologist believes this proportion is changing. In a…

A: Solution: Let X be the number of rainstorms were thunderstorms and n be the sample number of…

Q: A humane society claims that less than 62% of households in a certain country own a pet. In a random…

A: GivenA humane society claims that less than 62% of households in a certain country own a pet. In a…

Q: a national survey was initiated and intended to capture the prevalence of HIV in the post-HAART…

A: Given: Sample Sizen=1483 Sample Proportionp^=2411483 Thus p^=0.162508 The standard error is given…

Q: showed that 64 were on time. An SRS of 100 flights by Happy Airlines showed that 80 were on time.…

A:

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: It is given that:Sample size: Number of positive BAC in sample: Level fo significance: We have to…

Q: In September 2005, 33% of adult Americans believed in haunted houses. In a poll conducted in June…

A:

Q: 54% of students entering four-year colleges receive a degree within six years. Is this percent…

A: conclusion :

Q: Data from the Department of Motor Vehicles indicate that 80% of all licensed drivers are older than…

A: From the provided information, Sample size (n) = 50 32 were older than 25 years and the other 18…

Q: In the past, it was believed that 40% of women felt that men are basically selfish and…

A: Given: P=0.40n=3000x=1260α=0.05 Formula used: P^=Xn Z=P^-PP.qn

Q: researcher claims that 30% of individuals who take a particular type of drug will develop side…

A: Sample size n =264 Favorable cases x =67 Sample proportion p^=x/n  =67/264 =0.2538

Q: An education researcher claims that at most 7% of working college students are employed as teachers…

A: claim for the above example is at most 7% of working college students are employed as teachers or…

Q: About 1.5 in a 1000 of those in a particular population are diseased. A diagnostic test is touted as…

A: The given probabilities are: P(D) = (1.5/1000) = 0.0015 P(+|D) = 0.99 Pr(−|not D) = 0.99

Q: Recent results suggest that children with ADHD tend to watch more TV than children who are not…

A:

Q: Researchers suspect that 20% of all high school students smoke at least one pack of cigarettes a…

A: Given n=300 X=57

Q: A study was conducted using undergraduates at a urban university who volunteered to participate in…

A: Note: " Since you have posted many sub-parts. we will solve the first three sub-parts for you. To…

Q: The 2006 Statistical Abstract of the United States reports on a survey that asked a national sample…

A: Given that  Sample size (n) = 80000 Suppose  that one-third of all American households own a pet…

Q: 200 males and 200 females are asked a series of questions to determine whether they are considered…

A: Given information: 200 males and 200 females are asked whether they are heavy drinkers or not. 66…

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: We have given thatp0 = 0.34n = 113x = 52Significance level () = 0.05

Q: 31. 86% of women shave their legs. A cosmetologist thinks this is lower in Europe.  A sample of 335…

A:

Q: The test statistic, t, is (Round to two decimal places as needed.) The P-value is (Round to three…

A:

Q: Dioxin Researchers have linked an increase in the inci-dence of breast cancer in Italy to dioxin…

A:

Q: A special education teacher did research on whether or not there is a relationship between the…

A: The correlation coefficient and slope are –0.863 and –1.212294, respectively.

Q: In North America, between 100 million and 1 billion birds die each year by crashing into windows on…

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.