An investigative reporter contacts a random sample of hotels, and finds a 95% confidence interval for the proportion of hotels in the United States that have reported having bedbugs is (0.04. 0 11)

Q: In statistical comparisons, a p-value represents the likelihood that an observation was merely due…

A: This question is asking us to examine Table 1 in a research article and determine which…

Q: A 93.32% Cl is given as (2.5, 3.5). From this information, find a 95% confidence interval (yes, this…

A: The provided information is as follows:The 93.32% confidence interval is (2.5,3.5).

Q: Construct a 95% confidence interval for the proportion of people who performed any volunteer work…

A: It is given as Favourable cases, x = 517Sample size,, x = 517Confidence level = 95%

Q: what would be the 90% confidence interval of the true proportion of young adults who have received…

A: Given that sample size is n = 190 And the sample proportion is 70% = 0.7 At 90% confidence level,…

Q: When Mendel conducted his famous genetics experiment with peas, one sample of offspring consisted of…

A: Obtain the 95% confidence interval estimate of the percentage of yellow peas. The 95% confidence…

Q: A survey of 200,000 boat owners found that 12% of the pleasure boats were named Serenity.Find the…

A:

Q: The heart rate variability (HRV) of police officers was the subject of research published in a…

A: Given information For 74 officers diagnosed with hypertension, 90% confidence interval (9.5, 124.2)…

Q: A survey of 400 students at Red Rock College found that 180 planned to take summer classes. Find a…

A:

Q: A sociologist develops a test to measure attitudes towards public transportation, and 27 randomly…

A: Given information- Sample size (n) = 27 Mean x̅ = 73.8 Standard deviation (s) = 21.4 Significance…

Q: In a random sample of 41 professional actors, it was found that 15 were extroverts. Find a 99%…

A: The sample proportion=p^=1541confidence level= 99%=0.99Significance level=α= 1-confidence level=…

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

A:

Q: A sociologist develops a test to measure attitudes about public transportation, and 25 randomly…

A: Mean = 76.2 Standard deviation = 21.4 Sample size = 25

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 437 green peas…

A:

Q: In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of them use the Internet…

A: We want to calculate the 90% confidence interval for each of the following proportions

Q: In a study of 150 randomly selected accidents that required treatment in an emergency room, 36%…

A:

Q: the following sample was taken from a normally distributed population: 20,27,15,2016,22 and 13. A…

A:

Q: A health insurance firm wants to estimate the proportion of a population that would receive the flu…

A:

Q: The tobacco industry closely monitors all surveys that involve smoking. One survey showed that among…

A: given that,size(n)=785success rate ( p )= x/n = 0.183

Q: An interactive poll found that 397 of 2,391 adults aged 18 or older have at least one tattoo. A.…

A: Given data: Sample size (n) = 2391 x = 397 adults To construct: 1.95 % confidence interval 2.98%…

Q: A survey of 20 people asked, “If you’ve ever been married, how old were you when you were first…

A:

Q: A survey of 300 women shoppers found that 17% of them shop on impulse. What is the 80% confidence…

A: From the provided information,A survey of 300 women shoppers found that 17% of them shop on impulse.…

Q: The Nielsen company surveyed 257 owners of android phones and found that 217 of them planned to get…

A: From the provided information,

Q: A sociologist develops a test to measure attitudes towards public transportation, and 37 randomly…

A: given that,sample mean, x =58.5standard deviation, s =19.7sample size, n =37standard error = sd/…

Q: A media research group uses samples of 6000 households to rank TV shows. The group reported that a…

A: Given that: n=6000 p=19%=0.19 q=1-p=0.81 95% confidence interval

Q: Of 102 randomly selected adults, 42 were found to have high blood pressure. A 90% confidence…

A:

Q: In a random sample of 250 high school students, it was found that 85.2% (213) of them later…

A:

Q: Of 848 children surveyed, 144 plan to join a volunteer group in the future. Construct a 90%…

A: We have given that n=848, X=144, C.I=90%=0.90

Q: Of 130 adults selected randomly from one town, 30 of them smoke. Construct a 90% confidence interval…

A:

Q: A poll found that82​%of a random sample of 1093 adults said that they believe in ghosts. a.…

A: a) Given that n=1093p^=82%=0.82Confidence level=99%=0.99Significance level=0.01 The z critical value…

Q: n a town in nj we take a random sample of 100 residents. It turns out that 25% of the adult…

A: Given Data: p=0.25 n=100   z-value for 90% Confidence level=1.645

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Given at  99% confidence interval based on this sample is: 1.7 hours to 3.1 hours.  sample mean=?…

Q: Example : In the group of 345 children surveyed, the sample mean was 11.3 and the standard deviation…

A:

Q: At one large college, 660 out of the 1500 students surveyed said they plan to take another science…

A: Given that,   x=660,n=1500 The sample proportion is, Critical values: By using the standard normal…

Q: 8.2 question 5).  In 2013, the Gallup poll asked 1,039 American adults if they believe there was a…

A: Given, The sample proportion is,

Q: In the construction of an 88% Confidence Interval for a population mean u, a has the value of

A: Incomplete

Q: Out of a sample of 760 people, 367 own their homes. Construct a 95% confidence interval for the…

A:

Q: A statistics student wants to conduct a study to determine the proportion of workers in Cititon who…

A:

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.