Discuss about population and sample using examples

Q: Test the claim about the population mean, p,

A: Given : n=61 , X-bar=28.3  , σ=3.74 , μ0=30 , α=0.04 Here we want to test the claim that μ=30

Q: For a list of data, the lowest and highest score values are examples of statistics O Population O…

A: Here we need to choose from the correct option.

Q: Find the population mean or sample mean as indicated.   ​Sample: 15​, 10​, 9​, 13​, 13

A:

Q: A Click the icon to view the discussion of sample s The sample should include (Type whole numbers.)…

A: Given: Margin of Error, E = 0.04 Sample proportion p^1=p^2=0.01 (as no prior estimate has been used)…

Q: Give concrete examples when you would/would not use the following measures of location: Sample mean,…

A: A measure of central tendency is a summary statistic that describe the central tendency or typical…

Q: Find the population mean or sample mean as indicated.   ​Sample: 25​, 10​, 3​, 6​, 11

A: Given: Sample data: 25, 10, 3, 6, 11 Required: To find the population mean or sample mean as…

Q: Consider the data set 7, 9, 14, 15, 22. What is the standard error of the sample mean?

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Q: a) Why do you think any serious researcher would use the sample mean as a measure center to estimate…

A: (a) solution

Q: What are some examples of sample statistics

A: Sample: A subpart, portion or subgroup is selected taken from the population is known as sample. It…

Q: People on the street" interviews is example of systematic sampling

A: Answer is Convenience sampling.

Q: what is sample and population ?

A: Population : Population refers to all possible individuals or subjects in a study Or we can say that…

Q: difference between a sample and a population

A: Population: Population is the entire group from which we draw the conclusion. Sample: Is the…

Q: Decide if the following statement are true or false.  If the statement is false, please correct it.…

A: Given statement is : The sample mean is denoted by ?μ and is a point estimate for the population…

Q: Using excel  show how we can select stratified sample for 12 students and calculate mean , and…

A: First,  We enter the given data in Excel sheet.  To Calculate mean, we use =average () command and…

Q: Using a sample to make generalizations about an aspect of a population is called

A: Using a sample to make generalizations about an aspect of a population is called Answer: Statistical…

Q: For a particular population, is the population mean a variable? What about a sample mean?

A: Explanation:Since the population mean is constant, it cannot be variable. Population mean is a…

Q: Explain what is meant by the term “sampling distribution”.

A:

Q: Explain the difference between an independent and dependent sample. Give an example of each.

A: Dependent samples:The two samples are said to be dependent if there exist an effect of one on…

Q: find coefficient of variation for given sample.   45,78,42,1814,25,45,85,2,8,15,47,89,29,65

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Q: Describe what you see in the attached scatterplot for a sample of 20 low birth weight infants.

A: Use the Excel and Calculate the Correlation  Followings are the Steps to Calculate Correlation 1)…

Q: Explain what is statistical test and test value. Give a problem example.

A: Given that  Explain what is statistical test and test value. Give a problem example

Q: what is meant by the term “sampling distribution” ?

A: A sampling distribution is a probability distribution of a statistic obtained from a larger number…

Q: A researcher wishes to determine if there is an association between age and life-contentment. To do…

A: Observational studies are those studies in which the investigator observes and derive conclusions…

Q: List three reasons why samples are used in statistics

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

Q: Several years ago, two companies merged. One of the concerns after the merger was the increasing…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Explain sampling, sampling error and sampling distribution with examples. Discuss the importance of…

A: Sampling is a method of data collection used in statistical research and analysis.

Q: A student at Phoenix High School conducted a survey. The student surveyed 100 of the 680 students…

A: Consider that in a sample of 100 student out of 680 students, the average number of APP's installed…

Q: Is the statement below true or false? A sample is all individuals, objects, or measurements whose…

A: A Population is all individuals, objects, or measurements whose properties are being studied.

Q: Suggest an appropriate method of data collection (observation v.s experiment; survey vs. simulation…

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Q: What is the five-number summary for the set of data below? 7,6, 5, 14, 18, 14, 20 Lower Extreme…

A: Given the data 7 6 5 14 18 14 20

Q: them are Republicans. Do the data comprise a sample or a p Do the results represent a statistic or

A: NOTE: As per the guidelines, we are supposed to solve first question only. a). Population is a…

Q: find range and population variance for given data  45,56,12,1,3,4,5,67,89,78,45,25,87

A:

Q: What symbol is used for the arithmetic mean when it is a sample statistic? What symbol is used when…

A: When we calculate the arithmetic mean of a sample or as a sample statistic, it is represented as x¯.…

Q: Birth months Here are the reported birth months for the 40 students in the online sample. Summarize…

A: Count the number of times each month is repeated to obtain the frequency distribution.

Q: n statistics, a collection of information is also called a ______

A: We know that  Population sheet :  It describes about the population of data  Data set : It is…

Q: What is Sample Mean?

A: A statistical population is a set of entities from which statistical inferences are to be drawn,…

Q: WHAT IF? You want to estimate the number of twelfth-grade students in a high school who ride a bus…

A: Unbiased: An estimator or decision rule with zero bias is called unbiased.

Q: A school board want student input to help decide what playground equipment to replace. They collect…

A: Stratified sampling is a method in which the population is divided into different stratas and…

Q: Find the mode of the given sample: 12, -2, -2, 12, 12, -2, 22, -22, 22, -22,12 -22 12 -2 22

A: Given sample= 12,-2,-2,12,12,-2,22,-22,22,-22,12 Mode=A value appears most frequently in the given…

Q: find sample variance of data   45,85,63,21,54,25,85,65

A:

Q: What is the population of interest? What is the sample?

A: 41. The study is conducted to determine the number of hours of sleep full-time college students at…

Q: Explain step by steb  Consider your clan (family and relatives) as the population. List the members…

A: Sampling is nothing but the technique of selecting individual members from of the…

Q: It's one question. Second image is the sample data

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: Define Sample?

A: Sample is defined as small set of data that is chosen from large population by using predefined…

Q: The process of using sample statistics to make conclusions about population parameters is called…

A: In statistics, the population consists of the entire set of entities that are under study, whereas 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.