How are related samples different from independent samples?

Q: Are the samples dependent or independent?

A: The samples size of local bank is 46 and the sample size of competitor bank is 50.

Q: can ridge regression be applied if sample size is smaller than the number of predictors?

A: It is not unusual to see the number of input variables (predictors) greatly exceed the number of…

Q: What do you need to look for in bivariate screening (for each categorical and quantative variables)?

A: Solution:Bivariate analysis helps to determine the relationship of two variables. The possible…

Q: 4. True or False? H0 for the sign test always states that the mean difference between the matched or…

A: Sign test: The sign test is a non-parametric test that is used to compare ranks the population means…

Q: What is the advantage of removing the variability caused by individual differences in a…

A: A within-subject design is a type of experimental design in which all participants are exposed to…

Q: What is the difference between independent samples and dependent samples?

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

Q: Explain Z-Test for Large Sample Sizes ?

A: Z-test: For large samples (greater than 30), Z-test is a statistical test used to determine whether…

Q: Why is comparison of two different samples a fundamental tool for statistical analysis?

A: Statistical analysis is the science of collecting, organizing and presenting large amounts of data…

Q: What is the difference between two samples that are dependent and two samples that are independent?…

A:

Q: How do we find the corresponding z-score of an area and a percentile?

A:

Q: give one disadvantage of using experience sampling and one advantage of using correlational methods…

A: Disadvantage of using experience sampling Despite the strengths and promise of this method, there…

Q: Two types of single-sample tests: How are single-sample z tests and t tests similar in terms of data…

A: Theoritical Question we need to find how are single-sample z tests and t tests similar in terms of…

Q: Standard scores, such as z scores, allows us to make comparisons across different samples. Why is…

A: Standard score is the measure of the units of standard deviation between any given raw score and the…

Q: How is the analysis of variance (ANOVA) specifically the F-Test, a signal to noise ratio?

A: ANOVA is a study which is non parametric. ANOVA stands for "Variance Analysis" and is used to…

Q: The most important advantage of experiments over observational studies is that . a confounding…

A: Experiments give better evidence of causation.

Q: Explain the situations of independent samples t-test vs. paired-sample t-test?

A: Independent samples t-test vs. paired-sample t-test.

Q: When should you use a one-way ANOVA to analyze your data? Distinguish between one–way ANOVA for…

A: ANOVA compares one or more population mean scores with each other on the basis of the sample data;…

Q: How to differentiate dependent and independent samples?

A: It is a subset of the population. In other words, it is a representative part of the population.

Q: When you are testing the difference between two means, it is not important to distinguish whether…

A: Consider the provided question, We have to check the given statement is true or false. Then the…

Q: c of a population

A: The sampling variability is a type of variability attributed to sampling.

Q: Are these samples independent or paired?

A: When the two observations are taken on same individual then the samples are said to be paired.

Q: What are the three value to indicate variability of a data set How do you determine whether it is…

A: Variability :  It refers to the difference being shown by the data points within a data set, as…

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: What is helpful to interpret bivariate tables~ percentages or frequencies?

A: Given that  We have to define  What is helpful to interpret bivariate tables percentages or…

Q: What is the key difference between an independent and a dependent samples t-test?

A: Solution-: What is the key difference between an independent and a dependent samples t-test?

Q: 3)   In a paired samples t test, explain the logic of difference scores (why do you need to find…

A: Given A paired samples test with difference score and μ as  0 We considered population mean to be μ

Q: an independent-samples t test, you will usuall

A: the test statistic for independent-samples t test = μ1-μ2-0combined standard deviation

Q: What is a sampling error and how does it differ from other sources of error, how does it increase…

A: Sampling Error is the error obtained from sample values with respect to the population value.…

Q: When you are testing the difference between two means, it is not important To distinguish whether…

A: While testing the difference between two means,we might come across two circumstances.When the…

Q: Distinguish Sample Range from Sample Variance

A:

Q: Which are the steps involved in the construction of explanatory bivariate tables?

A: Explanatory Bivariate table: A Statistical technique intended to recognize and portray the…

Q: With a paired-samples t test, you will usually compare the sample mean for the difference score to…

A: Paired t test: The mean of the same group at different times are compared. That is, sometimes…

Q: Explain about the Two Independent Samples.

A: Two samples are said to be independent if the sample values selected from one population are not…

Q: What is the value of tobt for the independent samples?

A: The formula of test statistic for two independent samples t test is,

Q: How to decide one or Two Samples?

A: t-test:  (i) In the t-test, the sample size of 30 is large enough (n < 30) (ii) Samples are taken…

Q: A hydrologist is interested in studying the influence of rainfall on runoff in a drainage basin.…

A: Test is to determine the influence of rainfall on runoff in a drainage basin. Note : Since you have…

Q: explain why two parameters are used in a two sample test

A: Here in the two parameters we take in two sample t-test because, we take samples from two…

Q: What aspect in statistical process that refers to the extraction of relevant information from the…

A: For conducting a study, we collect the data for a sample or population. Then we process the data to…

Q: Explain why you should use ANOVA instead of several t tests to evaluate mean differences (i.e.…

A: T-test is used to compare the means between two samples, but if there is more than 2 conditions in…

Q: What are the practical Reasons for learning how to use the formula in determining sample size?

A: The two major factors affecting the power of a study are the sample size and the effect size A…

Q: Explain the difference between dependent and independent samples

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

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: Does the process of statistical analysis stop at the end of the analysis?

A: Introduction:A statistical data analysis procedure can be performed broadly in the steps-…

Q: What does a z-score of 3 for a data value x represent? What does a x score of -1 for a data value x…

A: We have to interpret z scores.

Q: When you are testing the difference between two means, it is not important to distinguish whether…

A: There are two cases : 1. We take two samples from different population and test for the difference…

Q: What are some of the advantages and disadvantages of using a related samples design?

A: Advantage: Related samples require fewer members for a similar level of intensity. A…

Q: When does Two Related Samples occur?

A: Definition: Related sample: Paird data is known as releated sample or coupling data also called…

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.