True or False: For practical purposes collecting data and computing for the population mean is more preferred than drawing out samples from the population.

Q: Why should I learn statistics?

A: Statistics helps us to describe and organize data. It also helps us to make inferences from data.

Q: Can you please expain why population is discrete data

A: Now population data can either be; Qualitative data Quantitative data

Q: When data is normally distributed the mean equals the median True False

A: Normal distribution

Q: FOR ESTIMATION OF PARAMETERS IN STATISTICS: What are the Types of Estimates? How to estimate a Mean?

A: In Estimation of Parameter in statistics there are two types of estimation, i. Point Estimation  ii.…

Q: The difference between the mean of the sampling distribution of a statistic and the true parameter…

A: We have given that, The difference between the mean of the sampling distribution of a statistic and…

Q: Explain Sources of Existing Statistics?

A: Existing statistics are previously collected data that has been analyzed in at least one way. There…

Q: What is the standard error for the estimate of the difference in proportions in the male and female…

A:

Q: What caution is must for finding the median for ordered qualitative data?

A:

Q: How can the specific characteristics of a population affect the analysis of data?

A: The basic data which is collected for any population before the analysis of data is their…

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: How much difference is there between the mean for the treated sample and the mean for the original…

A: Definition Sample Mean x It is the mean of all the values of a sample.   Population μ It is the mean…

Q: What is the effect of having different levels of confidence in estimation of population mean?

A: A confidence interval (C.I.) specifies a set of possible values for a given parameter.

Q: Why should you generally expect some error when estimating a parameter (e.g., a population mean) by…

A: Solution: We have to determine why should we generally expect some error when estimating a…

Q: What are requirements for testing a claim about a population mean with a known?

A:

Q: Which kind of descriptive statistics can be included to summarize the quantitative data? if the…

A:

Q: When we estimate to the population from sample data (as we do with inferential statistics), why are…

A:

Q: As the true population mean moves away from the hypothesized mean, the power of the test decreases.…

A:

Q: How will you differentiate between descriptive statistics and inferential statistics? Describe the…

A: Inferential statistics : It makes generalization for the population from the sample. It means…

Q: What statistical calculation, which results in the same units as the measured data, represents the…

A: Introduction: For a random variable X taking n sample values, the sample variance is given by the…

Q: What is Population Mean?

A: The population mean is that one measure of the population which can be used to represent an…

Q: What is Statistical Measure of the Amount of Variation in a Population?

A: Standard deviation: The standard deviation indicates by how much each observation differs from a…

Q: true about the type of data?

A: A team of researchers was requested to collect data on the household expenditure of two groups…

Q: Formulate the mean of the sampling distribution of the difference between means ?

A:

Q: Why does the observed mean difference should not be taken seriously?

A: Mean difference(MD): Mean Difference is also known as Difference in means. Mean difference measures…

Q: The best point estimate of population mean is?

A: Best Point estimation requires the use of survey data to measure a single value (also known as a…

Q: What are the steps for a hypothesis test for population mean when the variance is known?

A: Given the variance for hypothesis test for population , To write the steps for the hypothesis test…

Q: Why is the formula for sample variance different from the formula for population variance?

A:

Q: Why is it important for students of behavioral research to understand statistics

A: Behavioral Research is a human science which is deals with research in social and behavioral…

Q: Briefly explain what is meant when a researcher reports “a significant mean difference between two…

A: Introduction: When a researcher wishes to test for the mean difference between two treatment…

Q: Explain why the formulas for sample variance and population variance are different.

A: Here's the explanation is as follows; Sample Variance : It is used to calculate how varied a sample…

Q: What is formula for the variance of the population?

A:

Q: What will happen to the sample size if the percentage error becomes lower? Can you explain to me how…

A: From the given information we want to find solution.

Q: How is a sample related to a population? Why is a sample used more often than a population? What is…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: I am lookin for the relationship between the sample mean and the population mean and also the…

A: An estimate mus be having few properties in the sense of best estimate.Unbiasdness is one the…

Q: why is it  important for students to know something about statistics as applied to psychology?

A: Yes it is important for students to know something about statistics as applied to psychology…

Q: How can I describe this set of data based on statistics?

A: Following observations can be made from the given data. Standard deviation has a lower value as…

Q: Does data have to always be numerical in statistics?

A: Does data have to always be numerical in statistics

Q: We use information about populations to make conclusions about our samples. * TRUE FALSE

A: Given statement :  We use information about populations to  make conclusions about our samples

Q: - How do you know if a sample is significant different from the population mean? In other words,…

A: Let μ be the population mean of the sample we are taking and μ0 be the hypothesised population mean…

Q: Relative to the population mean, what happens to the possible sample means for samples of the same…

A: The sample mean is the average of all the observations sampled from the population.  If we have…

Q: The mean of the distribution of sample means would be equal to:

A: The mean of the distribution of sample means would be equal to ?

Q: Too many outliers on our sample data is acceptable as long as data are summarized and presented by…

A:

Q: If we could not measure the population mean, we could use the sample mean as a point estimator of…

A: Given:  we could not measure the population mean, we could use the sample mean as a point estimator…

Q: A critical part of inferential statistics involves determining how far sample statistics are likely…

A: Inferential statistics have two main uses: making estimates about populations (for example, the…

Q: Explain the differences between independent samples and dependent samples as it applies to…

A: We have to differentiate between independent sample and dependent sample in hypothesis testing.

Q: When I’m trying to infer the population mean from a small sample, why do I have to rely on the…

A: Assumptions to use standard normal distribution to estimate population mean:The required conditions…