You need to test a claim that more than 18% of students at your campus do not know their blood types. Which sampling method would you use? Where would you collect the sample? Describe how you plan to use the chosen sampling method to collect the data

Q: ow can I change it to a representative sample

A: In convenience sampling, the individual samples are easily determined and do not depend on…

Q: What are the different sampling techniques?

A: The different sampling techniques are:

Q: For the scenarios below, determine which sampling method was used (simple random, cluster,…

A: Introduction :-  For the scenarios given, we have to determine which sampling method was used…

Q: can you Define Hypothesis and explain in 800 words, basic elements of sampling?

A: Sampling is a technique of selecting individuals from the population to make statistical…

Q: Identify the sampling technique used to obtain the following sample The first 40 students leaving…

A: The convenience sampling method is the method of sampling where sample is taken from group of people…

Q: Explain the procedure you would follow in constructing the sampling distribution of the difference…

A: The sampling distribution of the difference between two sample proportions based on large samples…

Q: Explain the difference between the following sampling techniques: simple random sampling, stratified…

A: Simple random sampling : It is a the sampling when samples are chosen randomly, where each unit has…

Q: Find the estimated standard error for the sample mean for n = 12 and SS = 3463. Nearest hundredths…

A: We have given that  Sample size n= 12 SS= 3463

Q: Identify the type of sampling method used. A trucking company places their office phone number on…

A: Solution ) this sampling called as                                                 -  voluntary…

Q: Read the description below and determine the method of sampling. Ask four classmates to rate the…

A: Answer is  Convenience

Q: describe the sampling distribution of the sample means in the histogram

A: A histogram of sample mean is given.

Q: Does the sample size ? affect the mean of all possible sample means? Explain your answer.

A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: Why is a sample proportion generally used to estimate a population proportion instead of obtaining…

A: Population proportion: The proportion that is calculated from the population which has a specific…

Q: can you give the importance of  work sampling in health care?

A: Given problem Given that   Work Sampling : i) It is a type of sampling technique ii) It determines…

Q: Among the random and non-random sampling techniques that we have, which do you think is the most…

A: Random/Probability sampling is a technique in which each member of the population has an equal and…

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

A: Census: A census is a collection of information from all units in the population or a complete…

Q: Explain sampling bias and describe how random sampling serves to avoid bias in the process of data…

A: Sampling Bias is biasness that emerges in the process of sampling. It indicates that all sampling…

Q: Why Should Multiple Sampling Methodologies Be Considered For Health Care Research?

A: Given that - Why Should Multiple Sampling Methodologies Be Considered For Health Care Research?

Q: When would you use purposive and representative sampling?

A: Often a researcher does a random sampling which includes people from every background and demography…

Q: Understand the basic principles of sampling, including the differences between statistical and…

A: The sampling theory is based on three principles- (a) Principle of validity- According to this, the…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

Q: Why is Sampling, Estimation and Testing Important?

A: Answer:-  Sampling: Sampling is a statistical procedure of drawjngba small number of elements from a…

Q: You want to conduct a survey to determine the proportion of people who favor a proposed tax policy.…

A: The margin of error is computed by taking the product of standard error and critical value.

Q: What is Sample?

A:

Q: estimate the sample size for a population of 750 people.

A: To estimate the sample size the required calculation can be defined by the formula  Slovin's…

Q: A researcher selects neat women for a research study. What sampling method was the researcher using?…

A: We have given that the statement about sampling method.

Q: What is the value of the standard score for the sample proportion?

A: If mean if the proportion us P And standard deviation is √(pq/n) Then standard score or Z score for…

Q: Why a sample size of n=100 is more likely to have a percentage of pop songs closer to the population…

A: Sample of size 32 or greater is consider as large sample .

Q: What is the difference between a cluster sample and a stratified sampling

A: There are broadly two types of sampling procedures or methods: one is probability and the other is…

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

A: We have to answer question based on proportion.

Q: Explain the EFFECT OF SAMPLE SIZE.

A: The size of our sample defines how much information we have and thus, in part, decides our precision…

Q: Explain about if larger the sample size, what does this reflects.

A:

Q: Marina sampled every tenth member of the population in her studies. What type of sampling would she…

A: We want to tell what type of sampling would she be used

Q: You want to obtain a survey from households across the U.S. To obtain the survey you separate the…

A: You want to obtain a survey from households across the U.S. To obtain the survey you separate the…

Q: Decide whether the sampling method is biased or unbiased. Explain your results:

A: We have given that the statement related to sampling method is biased or unbiased.

Q: Briefly explain Sampling Error?

A: The sample does not give exact or accurate information about the population even though the sample…

Q: What type of sampling is used?

A:

Q: How do you find the stardard deivation for a sample proportion?

A: The sample proportion is p, suppose.  Find q which is equal to 1-p Finf the sample size = n

Q: Does the sample size n affect the mean of all possible sample means? Explain your answer.

A:

Q: What does a sampling distribution serves?

A:

Q: What is an example of a stratified sample? How can you tell when appropriate to use a stratified…

A: When the population is divided into small samples of interest then these are called strata and the…

Q: What are the advantages of sampling over a census?

A: Population: In statistical enquiry our interest lies about gathering information about some…

Q: Maddie surveys the 51 people in attendance at church today. Identify the sampling technique:…

A: In simple random sampling, each of the unit is population has equal chance of being selected in the…

Q: Determine if the survey question is biased. If the question is​ biased, suggest a better wording.…

A: Here, the question is “why is eating vegetables good for you”. It already assumes that eating…

Q: Vhich type of sampling did the researcher use? O Stratified sampling D Random sampling O Convenience…

A: Random sampling is a part of the sampling technique in which each sample has an equal probability of…

Q: How much "error" is too much before you are no longer confident about your estimates or research…

A: Given information: Margin of error is defined as the half the width of the confidence interval.

Q: You want to gather some data about students at a local high school. Match the name of the sampling…

A: given

Q: What does the SEM value tell us about the magnitude of sampling error?

A: Introduction: Suppose a random sample of size n is taken from a population with mean μ and standard…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.