In what situations is a census more appropriate than sampling? When is sampling more appropriate than a census?

Q: For practical purposes collecting data and computing for the population mean is more preferred than…

A: In question, We'll check about the given statement which is true or false. The explanation is below,…

Q: Question 1 a) A researcher used the sample median as a measure of center instead of the sample mean.…

A: Mean and median of a set of values represent the average tendency of the values and the most…

Q: Hi  I need a better explanation for problem 23 (question below) of section 3.2 of the book…

A: Range: From the given information, the data values are 10, 20, 12, 17 and 16. Here, the maximum…

Q: If we are dealing with data obtained about the sample means, then we will use the formula z =…

A: Solution

Q: Week 8 Assignment Part II-Joseph Grovogui 10. Use technology to help you test the claim about the…

A: The normal distribution is the most useful theoretical distribution for continuous variables.  For…

Q: Question 6 Compute the population mean. ( Round your answer to the nearest hundredth ). Blank 1…

A: (6) Obtain the value of population mean.   The value of population mean is obtained below as…

Q: Question 3 Lot size N-20,000, AQL = 1.5% Normal Tightened Reduced N (Sample Size) Ac Re

A:

Q: Week 10 Question 1 If you decide whether you want to see a new film or television program on the…

A: Samples are chosen from the population using a sampling technique because it is possible to study…

Q: eek 10 Question 7 What are the benefits of stratified sampling? Contrast stratified sampling with…

A: Stratified random sampling(STRS)   and Quota Sampling.

Q: Lab 3.1 Figure 3.11 The graph in Figure 3.11 displays the sample sizes and percentages of people in…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: hospital conducted a study of the waiting time in its emergency room. The hospital has a main

A: Given: Main Satellite 1 Satellite 2 Satellite 3 120.08 30.75 75.86 54.05 81.9 61.83 37.88…

Q: Week 10. Question  What geographical units within a metropolitan area are useful for sampling?

A: Samples are chosen from the population using a sampling technique because it is possible to study…

Q: When would a researcher use a judgment, or purposive, sample?

A: We know that  Judgement sampling -  It is the non probability sampling technique . Here researcher…

Q: QUESTION 4 A men's shop with an initial markup of 59% had markdowns of 10%, employee discounts of…

A:

Q: State 2 reasons why a sample survey may be preferred over conducting a census to obtain data.

A: We have to State the reason why sample survey may be preferred over conducting a census.

Q: The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 4 4…

A: Given information: Test score(x) frequency(f) 3 0 4 4 5 4 6 2 7 1 8 2 9 1 10 1…

Q: Question 5 Find the median for the given sample data. In ten trips to Las Vegas, a person had the…

A:

Q: what is the number of female administrators who participated in the event? Show your detailed work.

A: here given,   The table shows the distribution of 20,000 participants in the Special Olympics Game…

Q: s the following a sample research subject for qualitative or quantitative research? If it is…

A: Qualitative Research: In qualitative research, the variables are in the form of categories not in…

Q: Determine the sample size needed for each of the situations shown below. N= 3,300 o = 500 1.96ox =…

A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…

Q: You are told that the proportion p of those who answered "yes" to a poll about internet use is 'p =…

A:

Q: How large a sample is needed to estimate the population proportion for each of the following? a. ME…

A: a. Here, α = 0.05, α/2=0.025 and 1- α/2=0.975. The margin of error is 0.03. Since the proportion is…

Q: Question 1 political scientist surveys 34 of the current 140 hat is the size of the sample: hat is…

A: a political scientist surveys 34 of the current 140 representatives in a states congress

Q: Problem 7 - (part 1) What is the sum of the mean, median, and mode of these data? 4, 5, 6, 10, 10…

A: Part (1) Data 4,5,6,10,10

Q: Is the following statement TRUE or FALSE? "For a given population the mean of the sample means (H)…

A: a)The Statement given is False, we know that sample mean (μx¯) changes with sample size (n).Reason :…

Q: Question 3 Obtain the five-number summary for the given data. The test scores of 15 students are…

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

Q: The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3…

A: Given Information: Test Score Frequency 3 4 4 4 5 2 6 1 7 1 8 4 9 4 10 1…

Q: ) If we randomly sample 1,000 people from a large population, and ask them a yes-no question, what…

A: The sampling distribution of p-hat (sample proportion) is approximately normal with mean p and…

Q: I am having difficulty understanding how to create a frequency distribution table.

A: Frequency: The frequency of a particular data value is the number of times the data value occurs.…

Q: How large a sample is needed to estimate the population proportion for each of the following?a. ME =…

A: Sample size required to estimate the population proportion is: n=p×1-p×Zα/2ME2 where, p is the…

Q: If s = 16 and the estimated standard error is 2, then the sample size must be equal to ______.…

A: Given,s=16standard error(SE)=2

Q: when you have means from two different samples, it is best to conduct a what test?

A: When there is mean from two different samples, two types of test can be conduced:

Q: A small Fashion Boutique sells its clothing in four size categories: Baby, Toddler, Big Kids and…

A: Here it is asked to identify the sampling method for each of the given parts named as A , B , C , D.…

Q: Using EXCEL, run the Matched Sample t-test on data in Problem 24 on page 501. Data: Reported…

A: Let d is the difference between the domestic airfare for business travel for the current year and…

Q: Interests of students surveyed out of 200 80 60 60 45 40 40 30 25 20 IT BUSINESS MATH ENGINEERING…

A: The number of students who are interested in LANGUAGES is n = 25 The total number of students…

Q: Table 1 Black White Asian Males 4 8 Females 7 4 1) Table 1 above shows the means from a study…

A: Given:

Q: 13. The TV columnist for a local newspaper invites readers to log on to a website to vote for their…

A: The reliability of survey data depends on the below factors: Respondents may not provide accurate…

Q: Use the following to answer questions 4-8 A review of voter registration records in a small town…

A:

Q: Illustration. 20.25. Two investigators study the income of a group of persons by the method of…

A:

Q: If s = 15 and the estimated standard error is 5, then the sample size must be equal to ______.

A: According to the provided information, s=15 SE = 5

Q: Question 2 A car loans officer of a large commercial bank wishes to determine whether the amount of…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: From a Population consisting of following values of 2,2,4,4 and 8, how many samples of size two can…

A: The population size is N = 5 Sample size is n = 2

Q: Question 15 Here is a sample data set that appears to be nearly normal (as suggested by the…

A: Introduction - mean =sum of all observationstotal number of observations=∑fx∑fwhere , x=mid -point…

Q: Question 2 Suppose that the answer to the previous Question were such that the Relative Frequency of…

A: The relative frequency of a class is calculated as-Relative Frequency=FrequencyTotal sample size

Q: QUESTION 17 Obtain the five-number summary for the given data. The test scores of 15 students are…

A: The given test scores of 15 students are: 40,46,49,54,56,62,67,70,73,77,85,87,90,94,95. We have to…

Q: The following data lists the ages of a random selection of actresses when they won an award in the…

A: a. Assume that µd is the true mean difference of ages of Best Actresses ad Best Actors. That, is µd…

Q: Task 3 In an electronic load-measuring system, under certain adve of an error on each sampling cycle…

A: States Type 1 Error State 2 Non-error State   Type Probabilities Error preceded by error…

Q: SAMPLING Source Saunders er al (2009)

A: Since, the question number is not specified for answering, we'll be answering the first question…

Q: QUESTION 3 The file contains the amount that a sample of nine customers spent for lunch ($) at a…

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.