What is the difference between a population and a sample? Which is described by a parameter and which is described by a statistic?

Q: What information about variables, levels, and design should you keep in mind in order to choose an…

A: First, you have to define the level of measurements of each variable to be included in the analysis.…

Q: 61.3% of all Americanslike pepperoni on their pizza. Is this a parameter or statistic? Why?

A: Parameter is a numerical measurement that describing a characteristic of a population.

Q: what statistic should be used? What is the value of that calculated statistic?    Please explain!

A: The variable should be measured is increase in knowledge after the students participated in an…

Q: State two advantages of using a sample statistic rather than a parameter.

A: The numerical value that describes the characteristics of a population as a whole is defined as the…

Q: Statisticians are mostly interested in learning about the - population, sample, averages, or…

A: It is given that the statement about to the statistics terminology. Here, need to find out the…

Q: The mean arrival rate of flights at O'Hare Airport in marginal weather is 195 flights per hour with…

A: The true population mean is flights per hour.The population standard deviation is  flights per…

Q: What term is used to explain the natural difference between a sample mean the overall population…

A: What term is used to explain the natural difference between a sample mean the overall population…

Q: Why do you think any serious researcher would use the sample mean to estimate for the population…

A: Generally research is carried out to determine a particularoutcome in the targeted…

Q: Mention some of the factors that affect choosing a sample over a population when conducting a…

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

Q: How do you use each statistical measure (measures of central tendency and variability) to analyze…

A: Statistical measure measures of central tendency and variability

Q: What is the population in this study?

A: Given a study about the "childbirth fever".

Q: What do you understand by the terms “population” and “sample”? What are population parameters, and…

A:

Q: The display provided from technology available below results from using data for a smartphone…

A: We have find hypothesis...

Q: What is the distribution of a statistic based on a population parameter?

A: Population Parameter It is a characteristic of the entire population. The value of a population…

Q: What is the population mean of the given set of data? {3, 5, 9, 7, 10}

A:

Q: The best point estimator for the population mean is the sample mean. True False

A: TRUE

Q: What is the difference between testing hypothesis on a population and testing hypothesis when…

A: Statistical hypotheses testing:   Hypotheses testing is used to make inferences about the population…

Q: Question Help v A Statistics professor has observed that for several years students score an average…

A: From the given information we want to find the test statistics.

Q: Descriptive epidemiology characterizes the amount and distribution of disease within a population…

A: The provided information is as follows:The given example related to the descriptive epidemiology…

Q: What information about variables, level, and design should you keep in mind in order to choose an…

A: First, we have to define the level of measurement of each variable to be included in the analysis.…

Q: When is the population standard greater than the population variance?

A: Variance: The variation between each observation from its mean is known as variance. The greater the…

Q: What is the population and sample of this study?

A: We want to know population and sample in given example.

Q: What is the difference between a parameter and a statistic? A parameter is a numerical description…

A: We have to determine parameter and statistic

Q: What is the difference between a STATISTIC and PARAMETER

A: Solution:We have to determine the difference between a STATISTIC and PARAMETER.

Q: Is the sample mean always the most frequently occurring value? If so, explain why. If not, give an…

A: No, Sample Mean is not the most frequent Occuring Value.   Mean= Sum of Observations / No.of…

Q: Define the term statistic.

A: We have to define the term statistic.

Q: The varaibility of a statistic is described by

A: The variability means the spread ness of the data set. The best measure of spread ness is standard…

Q: If a teacher wants to assess whether there is a relationship between males and females on test…

A: Test performance Males Females Let n group of males and females are writing an exam The test…

Q: Explain the relationship between the population mean ?, sample mean ?̅, and a value of the sample…

A:

Q: You want to know what brand of computer students prefer, what statistic is most appropriate

A: In the given problem we have to answer the question of, You want to know what brand of computer…

Q: What is the importance of getting a sample from a population? When and why is it necessary?

A: The population is defined as a large group in which the units involved have the same…

Q: Why is it important to report both a measure of central tendency and variability to describe a set…

A: Basic idea about measures of central tendency and dispersion Measure of Central tendency is the…

Q: Find the standardized test statistic. z= (Round to two decimal places as needed.

A:

Q: does this mean that the answer saying "The sample statistic equation is correct to use when the data…

A: Yes you are correct. The sample is the the subset of the population.

Q: A poll found that in a random sample of 1000 American adults, 710 indicated that they oppose the…

A:

Q: What is the relationship between the mean of a population and the mean of its sampling distribution?

A:

Q: Consider a data set with a very high sample variance measurement. What would you expect the impact…

A: Let a data set have a high sample variance. The histogram is used to visualize a grouped frequency…

Q: What is the best point estimate for the population's variance if the sample variance is 41?

A: Given,sample variance(s2)=41

Q: An unbiased sample is a good representation of the population. True or False

A: Population is the set of all objects of interest. Sample is s subset of the population. It is not…

Q: What does it mean when sample results are statistically significant? The sample results would be…

A: There is always some contention about the value of a parameter or the relationship between…

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.