Question 7 a) Explain what is meant by i. a random sample ii. a stratified sample. b) State one advantage of stratified sampling. c) State one disadvantage of stratified sampling.

Q: In order to get patients opinion about the services provided to them by a hospital, a sample of 500…

A: A systematic type of sampling is the sampling in which every kth member is selected to gather a…

Q: Ideally, the sampling frame is identical to what?

A: A sampling frame is the collection of items from which the sample is taken. It is the specific list…

Q: 2. When the data from your samples is difficult to get by, this sampling approach is frequently…

A: Snowball sampling is a non-probability sampling method in which potential units in the population…

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: can you please give the more appropriate answer of this question with example? A population is…

A: Introduction: The procedure or process of taking a sample from the population is is called sampling.…

Q: Statement 1: A significant difference between the sample means implies that the difference between…

A: 1) Statement 1: A significant difference between the sample means implies that the difference…

Q: If the level α remains the same, and the sample size increases, then the power will __________.…

A:

Q: Write brief notes on the following Africana Section of a Library Likert Scales Purposive Sampling

A: basic definitions

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: Question 18 What term refers to the process of choosing a representative part of a population? O…

A: Solution:  Sample:  Sample is a part  or subset of the population.  The one or more unit selected…

Q: Question 10 (1 point) Which of the following would produce random sampling? a. selecting individuals…

A:

Q: Suppose in the statistics assignment from problem 1 the intended population was all the customers…

A: Given information: The population in the given scenario is all the customers who eat at that…

Q: A health study is based on a representative cross section of 6,672 Americans age 18 to 79(3,091 men…

A:

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: Henry conducts a survey at his middle school to determine the students' favorite after-school…

A: There are four main types of probability sample. Simple random sample: In this, every member of the…

Q: Do this! Sample Problem 3. How many people can be seated in 6 square tables lined up straight to…

A: In this question we have to find How many people can be seated in 6 square table lined up straight…

Q: The smaller the degrees of freedom, ________.   A The larger the sample size B The larger…

A: Formula for t test:The formula for t test is as follows:

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: 2. A researcher divided the subjects into 4 groups according to year level and then selected members…

A: The sampling method used in this process is stratified sampling

Q: A college administrator wants to survey 250 students that attend her college to see if students are…

A:

Q: Management of a nationwide Australian bank organised for a survey of its clients to assess the level…

A: Given information: The information about the management of nationwide Australian bank is given.

Q: Part II. Determine the following. 6. This is the sampling technique in which each sample has an…

A: We have given the following statements.    Note: According to Bartleby expert guidelines, we can…

Q: Problem: Determine the single sampling plans for an AOQL of 2%, process average of 1% and lot sizes…

A:

Q: For a fixed sample size, the lower we set α, the higher is the ___________.

A: If the level of significance is set as lower, then there is a decreasing chance of committing a type…

Q: Need answer to question 7.

A: 7.The total sampled customers are 540 out of which 75 of them experienced an interruption in high…

Q: Question 5 List or write the sample space for the gender in 3 randomly selected births. Edit View…

A: From the given information, Sample size (n) =8 The number of birth need to be selected is 3. There…

Q: Give one situation where each of the sampling methods is being applied. 1. Cluster Sampling 2.…

A: Sampling method involves: Prob. sampling Non-prob. sampling

Q: A geography student in Parkville, Missouri is conducting a housing survey, including questions about…

A: It is given that she knows that about 38% of the people in Parkville live in apartments, and wants…

Q: Question: 2. In order to determine the average weight of carry-on luggage by passengers in airp…

A:

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

A: A survey, which tries to include all of the population units in the sample, is defined as census. A…

Q: In your own words, thoroughly explain how a sampling distribution of a sample can be constructed.

A: Sampling distribution: Suppose we have a population of size N, Let us assume that there a bunch of…

Q: Give one situation where each of the sampling methods is being applied. 1. Lottery sampling 2.…

A:

Q: 1. A researcher wants to study the effects of social media on Grade 11 students in Manila…

A: It was stated that the researcher wants to study the effects of social median on grade 11 students…

Q: Question 23 This method of sampling requires selecting a random starting point, then selecting every…

A:

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: discuses briefly the following terminologies relevant to your sample in your own words. i. Sample.…

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

Q: Scenario   The Department of Health is conducting random drug testing in a barangay in relation to…

A: We want sample of the students for drug testing in barangay in relation to their age. It would be…

Q: A teacher deals with 3 sections of a marketing Which one of the following sampling techniqu a.…

A: In stratified sampling, the population is divided in such a way that it is homogeneous within the…

Q: Huck Finn is interested in the average length of catfish in the Mississippi river bordering St.…

A: In simple random sampling procedure, each of the population unit has same chance of being included…

Q: Determine if the following situations use random or nonrandom sampling. Then, identify what type of…

A: Probability sampling: In the probability sampling each unit of the populations has the equal chance…

Q: Question 4 Coach Smith wants to know whether students would pay for the privilege of parking their…

A: Simple random sampling is a sampling technique where every item in the population has an equal…

Q: Question 2 What sampling technique will be applicable for a very small sample size comin limited…

A: Here, we know that in the convenience sampling technic is also known as accidental sampling. In this…

Q: For the model: Y= If sample size is n= O 4 O 5 O 29 O 25

A: the model is Y = β0+β1X1+β2X2+β3X3+β4X4+ε we have n  = 30

Q: and

A: For conducting a research within Barangay stratified random sampling should be used. Because in…

Q: In which one of the following sampling techniques, the samples are selected based on the proportion…

A: We have to find sampling technique.

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.