Suppose that a polling organization surveys n=400 people about whether they think the federal government should give financial and to the airlines to help them avoid bankruptcy. In the poll, 300 people say that the government should provide aid to the airlines. Which choice gives the correct notation and value for the sample proportion in the survey? A. p̂=0.30 B. p=0.30 C. p̂=0.75 D. p=0.75

Q: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?

A:

Q: A college is considering the option to include plus and minus in the school's letter grading system.…

A: Given Information :  A college is considering the option to include plus and minus in the school's…

Q: To asses attitudes towards issues that affect the residents of a village, the village randomly chose…

A: sample proportion is nothing but the ratio of favourable outcomes in sample to the total possible…

Q: newspaper infographic titled "Social Media Jeopardizing Your Job?" summarized data from a survey of…

A: Given: It is assumed that the sample is the representative of population. Thus, Sample…

Q: A sample of 50 potential customers was asked to use your new product and the product of the leading…

A: Let n = sample size = 50 X = number of customers who preferred the product in the sample = 30

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: A random sample of 1400 Internet users was selected from the records of a large Internet provider…

A: Given data A random sample of 1400 internet users was selected  and asked whether they would use…

Q: A Pew Internet poll asked 4272 U.S. adults about their use of smart watches and fitness trackers. A…

A: Given that  Total Number of adults about their use of smart watches and fitness trackers n = 4272…

Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…

A: Given X=300 n=1815

Q: In a survey, 1000 respondents were asked about product preference. Of the interviewed, 65% favored a…

A:

Q: Read the following on attendance and grades, and answer the questions.   A study revealed that…

A: Attendance(%) Grade 95-100 1 80-90 1.5 or 1.75 <80 3 or 5  Based on the given data we…

Q: Suppose you wanted to know the proportion of students who wear glasses on campus and you went ahead…

A: you wanted to know the proportion of students who wear glasses on campus  you went ahead and survey…

Q: A survey of American households found that 1/4 had a land line, 7/12 had cable, and 1/3 had neither.…

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

Q: When asked what they consider to be the best birthday present, 64% of a random sample of  800 adults…

A: The Margin of Eroor (MOE) = z * √p * (1 - p) / √nWhere: z = 1.96 for a confidence level (α) of 95%,…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: From the provided information, Margin of error (E) = 0.03 Confidence level = 95%

Q: A magazine article conducted a survey of 807 people in Phoenix metro area and found that 45% of the…

A: Sample size (n) = 807 Population proportion (p) = 45% = 0.45 And  97% confidence interval is (41%,…

Q: A polling agency wants to determine the percentage of voters in favor of extending tax cuts. They…

A:

Q: Is there enough evidence to support the political scientist's claim that the proportion of college…

A: According to the given information in this question We need to answer the last two parts

Q: The city of Raleigh has 11,700 registered voters. There are two candidates for city council in an…

A: Consider x denotes voter supports Brown. Here, n = 350 and x = 178.

Q: The Excite Poll is an online poll at poll.excite.com. You click on an answer to become part of the…

A: Note- This is a multiple choice question, I have given the answer and explained it below.

Q: In a survey of 1200 workers, 35% said they eat at home during a typical work week. What is the…

A:

Q: a. What value should we expect for our sample proportion?

A: Let p be the population proportion of high school seniors who have a driver's license.Given that,

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: The margin of error (E) is 0.03 and the confidence level is 0.95.

Q: Use these results from a USA Today survey in which 510 people choseto respond to this question that…

A:

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

A: Given, The no. of sample, n =5431 The number of defective, x = 4943

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 10 p.m Newscast reaches 54% of…

A: Answer: From the given data, Population proportion (P) = 54%                                      =…

Q: Use the information below to answer following three questions.  Total Hardware expected to sell 800…

A: To calculate the sales margin variance, we first need to calculate the actual contribution margin…

Q: Suppose 50% of all voters in a population support a politican, SHARE What is the zscore of sample…

A:

Q: A school survey asked 20 questions about student characteristics and interests. State whether each…

A: Note:- Many a times, type of data would depend on the specific application as to how the data is…

Q: If the proportion of Heads is .45 out of 200 flips, what is the p-value?

A: The proportion of Heads is .45 out of 200 flips.

Q: The Arizona Department of Transportation wishes to survey state residents to determine what…

A: Solution-: Given: M.E.=0.03,α=0.01, We take, p^=0.5 and  q^=0.5  We find how many residents do they…

Q: A company wants to determine the frequency of the occurrence of invoice error. Suppose that in a…

A:

Q: Does the population proportion and sample proportion always have the same value?

A: The question is about parametric inference.Introduction :Population proportion :The value of…

Q: A researcher is conducting an investigation regarding the factors affecting the performance of 200…

A: Given Information: Number of teachers in the province of Cavite is 200 Margin of error is 3% i.e.,…

Q: recent poll reports that between 53% and 59% of voters will vote for president george in the next…

A: The confidence interval is (53%, 59%).

Q: A company wants to determine the frequency of the occurrence of invoice errors. Suppose that in a…

A:

Q: Ask 20 of your classmates about their favorite viand among the choices; ADOBO, SINIGANG and MENUDO.…

A:

Q: Read the following on attendance and grades, and answer the questions.   A study revealed that…

A: According to the Bartleby guideline only three subparts of the question can be solved at once, post…

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.