In the upcoming election for governor, the most recent poll, based on 900 respondents, predicts that the incumbent will be reelected with 55 percent of the votes. What is σρˆσρ^?

Q: In Malaysia, the rate of fatal occupational accidents in the construction industry recorded was 0.2…

A: As per the honor code, We’ll answer the first question since the exact one wasn’t specified. Please…

Q: A private opinion poll is conducted for a politician to determine what proportion of the population…

A: Given  Confidence level(CI)= 0.95 Significance level (α)=1-0.95=0.05 Margin of error

Q: The total number (in millions) of smartphone units shipped worldwide from 2009 to 2016 is given by…

A:

Q: The men hired by a certain city police department must be at least 69 inches tall. If the heights of…

A: Given μ=70 inches and σ=2 inches We need to find, Z=X-μσ=69-702=-12=-0.5 Now to find the required…

Q: The table summarizes results from 985 pedestrian deaths that were caused by automobile accidents.

A: Solution: The given table of data is

Q: Suppose a sample of 158158 tankers is drawn. Of these ships, 135135 did not have spills. Using the…

A: It is given that, among 158 tankers 135 did not have spills.

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: In our day-to-day life, we use probability without knowing to us. We use the word probably many…

Q: In the previous study done by a student, it was found out that 28.5% of the students used twitter.…

A: Solution: From the given information, p=28.5%=0.285, Confidence level is 0.95 and E=0.035.

Q: There are 5500 students at a college, 2860 of them are fema What percent of students are female?

A: Topic = Algebra

Q: The average dividend declared by a group of 10 chemical companies was 18 per  cent. Later on it was…

A: Given that  Incorrect Mean = MI = 18 Number of observation = n = 10 Correct figure = XC = 12…

Q: A researcher wished to estimate the difference between the proportion of users of two shampoos who…

A: Based on the provided information, the known values are: p1=78400=0.195p2=92500=0.184n1=400n2=500 In…

Q: At 5yrs old 10 of 307 children in the peanut butter group who ate were allergic and 55 of 321in the…

A: Given that  At 5yrs old 10 of 307 children in the peanut butter group who ate were allergic and 55…

Q: A polling company reported that 33% of 2302 surveyed adults said that they play baseball. What is…

A: Given information 33% of 2302 surveyed adults play baseball

Q: How many of your batchmates have you surpassed if your graduation rank in high school is 56th…

A:

Q: Suppose a senator finds that 45% of the United States voters are in favor of abolishing the…

A: z=critical value of 95% confidence interval=inverse normal of 0.95=1.96p=proportion=…

Q: In fall 2014, 34% of applicants with a Math SAT of 700 or more were admitted by a certain…

A: Let x be a total number of applicants with a Math SAT score.Then, it is given that 32% of x had a…

Q: A pollster wishes to estimate the number of left-handed scientists. How large a sample isneeded in…

A:

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A:

Q: Here are the ages (in years) of 8 professors at a college. 32, 46, 29, 37, 57, 28, 34, 42 What is…

A:

Q: In an election poll Mark recieved 17, 576,866 votes what is the continous data

A: Continuous data is the set of data, whose values can take any value with in a finite or infinite…

Q: A survey reported that 77% of registered voters in California approved of allowing two people of the…

A: Define the following events: A:  a register voter who approve gay marriage. B: a registered voter…

Q: The mean age of a combined group of men and women is 30 years. If the mean age of the group of men…

A:

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Probability of an event is the percentage of chances that the event will occur. The probability lies…

Q: A reputable polling company reports the results of an opinion poll on a recent news article A social…

A: Sample survey is collecting a data from the population. there are different types of methods of…

Q: A private opinion poll is conducted for a politician to determine what proportion of the population…

A: From the provided information, Margin of error (E) = 2.5% that is 0.025 Confidence level = 95% The…

Q: The mean age of a combined group of men and women is 30 years. If the mean age of the group of men…

A:

Q: A recent study claimed that at least 15% of junior high students are overweight. In a sample of 160…

A: Solution: State the hypotheses Null hypothesis: That is, the proportion of junior high students are…

Q: In a survey collecting data about the salaries earned by recent college graduates, Li found that her…

A: Given that Li salary was in the 77th percentile.

Q: Here are the heights (in inches) of 12 students in a seminar. 73, 69, 64, 62, 72, 66, 70, 74, 60,…

A: We have to find given percentage.

Q: A senator wishes to estimate the proportion of United States voters who favor abolishing the…

A:

Q: uppose the proportion of all college students who have used marijuana in the past 6 months is p =…

A:

Q: In 2001, the Gallup poll found that 81% of American adults believed that there was a conspiracy in…

A: Given that, x=634,n=1039 The sample proportion is,

Q: A 2014 Pew Research Center Survey asked 2,002 adults about the intersection of politics and science.…

A: The provided information are:Number of trials (n) = 2002Number of successes (X) = 1281

Q: Fewer than 91% of adults have a cell phone. In a reputable poll of 1214 adults, 86% said that they…

A: Null and alternative hypotheses: The investigator is specifically interested to test whether fewer…

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Margin of Error (MoE): It is the range of values below and above the sample statistics of the…

Q: A quality control process finds 74.7 defects for every 8,300 units of production. What percent of…

A: A quality control process finds 74.7 defects for every 8,300 units of production. What percent of…

Q: private opinion poll is conducted for a politician to determine what proportion of the population…

A:

Q: According to the results of a survey, 40% of 396 people indicated that American football is their…

A: Given Data: p^=0.4 Let 'n' be the sample size Margin of Error=0.04   Let us assume level of…

Q: A survey reported that 68% of registered voters in California approved of allowing two people of the…

A: Define the following events:   A:  a resgister voter who approve gay marriage. B: a ragister voter…

Q: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…

A:

Q: For this year's mayoral election, voter dissatisfaction is very high. In a survey of 500 likely…

A: It is given that the number of voters who plan to write in an independent candidate is 240 and the…

Q: Find √80 using the linear interpolation method.

A: Consider the function as y=x.

Q: An epidemiologist studies cardiovascular disease among 25,502 male middle-aged alumni of an Ivy…

A: Given that An epidemiologist studies cardiovascular disease among 25,502 male middle-aged alumni of…

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: Given Information: Sample size (n) = 856 Out of which 55% answers were "Yes". That is, Sample…

Q: Fewer than 91% of adults have a cell phone. In a reputable poll of 1191 adults, 86% said that they…

A: Given that sample size n = 1191 And sample proportion = 0.86

Q: Using a random sample of 4300 TV households, a media research company found that 62.2% watched the…

A: n = 7100

Q: Is percentage vote for the Green Party considered nominal, ordinal, interval?

A: It is an important part of statistics. It is widely used.

Q: Which of these terms is used to refer to: the average cumulative GPA of students in the study who…

A: In the study is conducted to analyze the average cumulative GPA who graduate last year  that means…

Q: In a poll of 480 universities students, 220 said they were opposed to legalizing marijuana estimate…

A: We have to find correct answer..

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.