What is the VaR Controversy?

Q: How to Converting to z Scores is done?

A:

Q: What are the explanatory variable and response variable for this relationship?

A: Given that among a group of 138 customers aged 14-23 who send more text messages tend to use a…

Q: What is hypothesis testing?

A: Hypothesis test: The process of making inference regarding the population based on the sample is…

Q: Distinguish between frequentist and subjective approaches?

A: 1. The frequentist approach is the statistical tool that is used to determine the conclusions from…

Q: Since the sample size is always smaller than the size of the population, the sample mean a. must…

A:

Q: when is the significance level determined

A: The significance level defines that the probability of rejecting the null hypothesis when it is…

Q: What statistical test would you use to compare three different groups on some dependent variable?

A: Given : What statistical test would you use to compare three different groups on some dependent…

Q: What are the variables in the STEMing the tide: Using ingroup experts to inoculate women's…

A: The following are the variables in the STEMing  the tide: Using ingroup experts to inoculate women's…

Q: Is the sample size of survey is multiplied by 25, then by what factor is the margin of error…

A: Solution

Q: How to Evaluation of the p -Value Approach?

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: What is the standard error for this problem, not using the pooled values

A: From the given information we find the standard error without using pooled value.

Q: Do you think that a margin of error greater than 5% is appropriate when conducting a research?

A: Margin of error helps to understand the confidence level of the research or survey. It is calculated…

Q: What is Variability between Groups?

A: Introduction: Consider k groups are to be compared with respect to their means, when it is known…

Q: What are the treatments and the response variables ?

A: From the given information, we are concerned about the effects of texting on driving performance We…

Q: What is Random Assignment?

A: Random assignment is when a research group (i.e. an experimental group or a control group) is…

Q: We need first to determine the degrees of freedom before we could calculate the sample mean True…

A: The sample mean is defined as Mean = Sum of sample observations/Sample size

Q: Define the term linear interpolation?

A:

Q: In your opinion, how important is hypothesis testing in research

A: Hypothesis :  Some statement about the population  , which is have to verify by using sample…

Q: What is an example of criterion validity?

A: Criterion validity  To evaluate criterion validity ytou calculate the correlation between the…

Q: Since the sample size is always smaller than the size of the population, the sample mean O A. can be…

A: Correct answer is (A)

Q: What is the explanatory variable ?

A: What is the explanatory variable ?

Q: Why is SSA called the ambiguous case?

A: SSS is a triangle in which side and an angle opposite one of them are given. such a case  is called…

Q: What is the explanatory variable? Is it categorical or quantitative ?

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

Q: What is an outlier and how can we identify them?

A: Outlier :   Outliers are data points that are far from other data points. In other words, they’re…

Q: Briefly explain how theory development might impact the selection of a sample.

A: Find: The theory development might impact the selection of a sample.

Q: Provide three different situations to illustrate how a different measure of central tendency is…

A: Mean Mean is the most widely used measure of Central Tendency that is used in Statistical analyses.…

Q: What is the weakness of p value approach?

A: p-value is basically the probability that the null hypothesis is false. Interpretation: If p-value…

Q: What are some ways to protect the confidentiality of research participants? Select all that apply.

A: It is the responsibility of the researcher to protect the confidentiality of  research participants.…

Q: the numerical value that is the best measure of central tendency for the "jobwant" varialbe is ____.…

A:

Q: What is the control for preventing misclassification?

A: Given information: It is asked to identify the control for preventing misclassification.

Q: If the sample size is increased, then the standard error for sample means also increases. True

A: The formula for calculating the Standard error is σ_x̄ = σ/√n

Q: What does hypothesis test indicates?

A: Hypothesis test: The process of making inference regarding the population based on the sample is…

Q: Explain why the use of a level of significance of 5% is not best in all circumstances.

A: There are two types of error, which are as follows Type I : Reject the null hypothesis when it is…

Q: 4. Explain the reliability with suitable examples.

A: The objective is to explain the concept of reliability with suitable examples.

Q: Explain different types of probablities with numerical problem example.

A: The following are the classifications of probability: a) Classical Probability: If a random…

Q: What is defination for p -value

A: P-value :  It is mostly used for take decision while testing a hypothesis.

Q: How to create a good research hypothesis?

A: *Answer :    There are several criteria that make a research hypothesis a good one, and following…

Q: What is the outcome and the conclusion of this test?

A: a) Option F t sampling distribution because the population is normal, and standard deviation is…

Q: Illustrate the sample covariance of a sample with itself?

A: Sample Covariance is defined as  Let x and y be two variables. The sample covariance is defined as…

Q: What is the difference between the predictor variable and the criterion variable?

A: In theory of statistics, dependent variable is the criterion or response variable.

Q: Suppose we wish to compare the health status of two groups of people. What variables might we use to…

A: Given information: The investigator is specially interested to compare the health status of two…

Q: Provide a comprehensive comparison and contrasting of Independent and Dependent Variable

A: An independent variable is the variable that is changed or controlled in a scientific experiment to…

Q: What is the difference between an extraneous variable and a confounding variable?

A: The following are the difference between the Extraneous variable and the Confounding variable .

Q: Explain Prerequisites for Single mean?

A: Single mean test: Single mean test is used to compare the mean of a variable in the sample of data…

Q: Explain the four steps involved in significance testing?

A: Hypothesis testing can be conducted in two ways: Critical value approach. P-value approach. The…

Q: What is the maximum number of dummy variables that can be defined when a qualitative variable has 4…

A: When we have m categories of the variable then we define (m - 1) dummy variables.

Q: The number of text messages sent and the number of phone calls made in a sample of 100 students

A: We know that the A variable that explains or affect the other variable is known as an explanatory…

Q: What is sample coefficients of variation

A: Measures of variability:The measure of variability or the measures of dispersion can be measured…

Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.