A Pew Research study estimates that 803 million people live in poverty today, after the 2020 global recession, out of a total of 7.754 billion people worldwide. Identify the sample proportion

Q: What is the median number of fossils found by students?

A: Median is defined as the middlemost observation present in a dataset, when the data set is arranges…

Q: In October 2017, the Gallup Poll asked a sample of 10281028 U.S. adults, "Are you in favor of the…

A: Margin of error: It is the vary of values below and higher than the sample data point in a…

Q: An entertainment company surveyed 360 elementary school children and found that 153 of them were…

A: There are 153 out of 360 (n) elementary school children found as above grade level readers. The…

Q: According to statistics reported on CNbC, a surprising number of motor vehicles are notcovered by…

A: Solution: a. Let X be the number of vehicles were not covered by insurance and n be the sample…

Q: A political scientist surveys 28 of the current 101 representatives in a state's legislature. What…

A: A finite part of a population chosen for an experiment is called a sample, and the number of…

Q: How many pupils from each year should be selected to give a stratified sample of 10%?

A: here use basic of stratified sampling method  sample size from each strata  = total sample sizetotal…

Q: A recent survey of 537 California college students found that 481 had taken an online class in the…

A:

Q: When 345 HS students were surveyed, 125 said that they completed a driver's education class prior to…

A:

Q: Why does Texas have some of the lowest voter turnout statistics in the nation?

A:

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the…

A: From the given information, The sample size is 100 viewers. Among 100 viewers, 36% indicated that…

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

A: Given X=300 n=1815

Q: Can you think of an area where it might not be practical, for a variety of reasons, to sample 100%…

A: Given:- We can think of an area where it might be practical, for a variety of reasons ,to sample…

Q: In order to estimate the attendance at a 1,000,000 square foot mall, a sample of people is taken in…

A: We will solve the problem

Q: Americans who believe the government should ensure basic health care is _________% with a margin of…

A:

Q: what is 63 million Americans under age 15 out of 314 million Americans in 2011?

A: Given, Americans under age 15 = 63 million               Total americans = 314 million

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

A:

Q: A tax auditor selects every 1000th income tax return that is received. Which sampling is used here?

A: A tax auditor selects every 1000th income tax return that is received. Here we will use Systematic…

Q: Based on the sample, predict the number of adults in Palm City whose main source of news is…

A: In sample, number of adults whose main source of news is newspaper, X = 54 Sample size n =…

Q: A political scientist surveys 35 of the current 130 representatives in a state's legislature. What…

A:

Q: Consider the sample data: 125, 115, 112, 127, 112, 105.

A: Data set: 125, 115, 112, 127, 112, 105

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

A:

Q: Explain the Representative Sample from a Population in Which the Variables Are Related?

A: The population is the area of interest for which, one want to inquire the characteristics or trend.…

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: In sampling, explain why obtaining a representative sample is important.

A: Representative sampling is important in sampling technique.

Q: There are 1,000 students in a college. Out of 20,000 in the whole university, in a study 200 were…

A:

Q: A political scientist surveys 23 of the current 96 representatives in a state's legislature. What…

A: Solution: Sample is the subset of population. Population is the entire set of units under study.

Q: Using the data, estimate the proportion of this that are defective.

A: Here given A quality conscious disc manufacturer wishes to know the fraction of disks his company…

Q: A political scientist surveys 33 of the current 134 representatives in a state's legislature. What…

A: It was stated that a political survey 33 of the current 134 representatives in a state’s…

Q: Nhat areas make up the lowest 15.8% of the distribution?

A:

Q: A political scientist surveys 47 of the current 120 representatives in a state's congress. What is…

A: Population: The population is the set of all subjects of interest. Sample: A sample is the subset of…

Q: Determine the statistical relationship between the average answer time (seconds) and the average…

A: Simple linear regression model: A simple linear regression model is given as y = b0 + bx, where y is…

Q: In a survey of 3121 people, 412 are under-vaccinated. What is the proportion of under-vaccinated…

A: Given data, Total no of people n=3121 No of people under vaccinated is x=412 What is the proportion…

Q: A uSa today/CNN/Gallup survey of 369 working parents found 200 who said they spendtoo little time…

A: It is given that the number of parents said they spend too little time with their children because…

Q: A pollster uses a campus directory and contacts every 50th person listed. What type of sample is…

A: Simple random sampling: In simple random sampling, all the units in the population have the equal…

Q: A quality control officer in a food processing factory selects every 20th jar of pickles from the…

A: In the above question food processing factory selects every 20th jar of pickles from the conveyor…

Q: A pollster wishes to estimate the true proportion of US voters who oppose capital punishment. How…

A: Given information Error = 3.5% = 0.035 Confidence level = 0.90

Q: If 471 households were surveyed out of which 385 households have internet fiber cable, what is the…

A: Among 471 households 385 households have internet fiber cable, therefore 471-385 = 86 households…

Q: If there are six groups being compared, how many mean comparisons will there be?

A: Given there are six groups.Here, it is required to find the total number of comparisons.

Q: A political scientist surveys 34 of the current 90 representatives in a state's legislature. What is…

A: Population: A population is the collection of all possible events for an experiment. Sample: A…

Q: Why is sampling often preferable to conducting a census for the purpose of obtaining information…

A: Taking a sample is speedy and more cost effective than carrying out a census, and more knowledge…

Q: A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV per…

A: Given: A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV…

Q: A political scientist surveys 26 of the current 87 representatives in a state's legislature. What…

A: Size of the population is total number of individuals under study. Size of the sample is number of…

Q: A previous study showed that 69% of community college students have read a book for personal…

A: Given info: A previous study showed that 69% of community college students have read a book for…

Q: A political scientist surveys 29 of the current 155 representatives in a state's legislature. What…

A:

Q: A political scientist surveys 22 of the current 107 representatives in a states legislature.   What…

A: Population: A population is the collection of all possible events for an experiment. Sample: A…

Q: The 8 most common blood types of people in the United States, and the percentage of people with…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: A poll found that 71% of people out of a survey of size 130 watch at least three hours of TV per…

A: From the given information,   A poll found that 71% of people out of a survey of size 130 watch at…

Q: Find the mean birth weight of these 35 babies

A: Here take  X = weight of baby at birth time = birth weight  f = number of babies  Use weighted mean…

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.