What is the problem of the designing of experiment ?

Q: In a sentence or two, discuss why a casual relationship cannot be concluded in observational studies…

A: Observational studies are non-randomized generally.  Observational studies cannot control for other…

Q: Explain the difference between the one-way fixed effects model and the one-way random effects model.

A:

Q: A statistical procedure in determining which hypothesis is more acceptable as true or which…

A: HERE USE basic  hypothesis testing

Q: What are the sample space of the experiment?

A: Here use definition of sample space

Q: When does Random sampling can be very difficult?

A: Simple random sample: In a simple random sample, each unit in the population has the equal chance of…

Q: What is a random experiment

A: To Discuss: What is a random experiment ?

Q: What is the size of the sample space when two 10-sided dice are rolled?

A:

Q: Explain the Potential Outcomes and the Average Causal Effect of using randomized controlled…

A: A potential outcome is the outcome for an individual under a potential treatment. And the casual…

Q: Which method describes an experiment?

A: HERE scenarios are given for check whether additive improve milage of car

Q: What is the difference between a fixed effect factor and a random effect factor?

A: The fixed effect factor is defined as when data has been gathered from all the levels of the factor…

Q: What are the conclusions of the study?

A: Parametric test is used to determine the mean significance between the sample and population when…

Q: What is Random Sampling?

A: Random sampling: A simple random sample of size n is collected from a large population where each…

Q: What are the criteria for an experiment to be a binomial experiment?

A: Let us consider the below example: A fair coin is flipped 10 times; X represents the number of…

Q: Discuss the basic strategy for comparing the means of two populations based on independent simple…

A: Simple random sample:It is a subset of the population, in which each element in the population…

Q: What is statistical inference ? How do you conduct a comparative experiment ?

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Explain randomized controlled experiment?

A:

Q: What significant element distinguishes a quasi-experiment from a true experiment?

A: Given problem Given that   What significant element distinguishes a quasi-experiment from a true…

Q: You are a candidate for your state legislature, and you want to survey voter attitudes regarding…

A: Since we want to study voters’ attitude. The population must be the “state’s individual voters’…

Q: how can statistical procedures can help determine whether the data is attributable to chance…

A: Statistical approaches can be quite useful in identifying whether or not data is due to chance. To…

Q: Is the study an experiment or an observational study ? How do you know?

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

Q: What is the statistical inference? How to conduct a comparative experiment?

A: Concept:Statistical inference is a process of drawing inferences using statistical procedure.

Q: Provide an example (different from the ones considered in this section) of a procedure based on a…

A: A researcher wants to test the effectiveness of the training program conducted for students to…

Q: whats an experimental hypothesis?

A: Hypotheses is the plural form for hypothesis. Hypothesis is a statement about the population…

Q: Why is randomization the best method for dealing with extraneous variables?

A: Here we have to explain why randomization is the best method for dealing with extraneous variables

Q: whats a statistical hypothesis?

A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…

Q: In a designed experiment, what are the experimental units?

A: Design of experiments (DOE) is a systematic method to determine the relationship between factors…

Q: How do you conduct a comparative experiment ?

A: Introduction An experiment is a procedure which can be repeated infinitely and has a well-defined…

Q: experiment?

A: Given Data: Percentage of babies recovered fully = 40% Total babies in the hospital = 7 Let the…

Q: 2. Explain the systematic random sampling approach and provide an example.

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

Q: is it a cluster sample

A: Cluster Sampling: A heterogeneous population is divided into homogeneous groups and which is used…

Q: Discuss the differences between a designed experiment and an observational study.

A: Experimental study is used to measure the effects of certain treatments on a particular sample.…

Q: Explain how methods developed for analyzing randomized experiments can be applied to…

A: The methods developed for analyzing the randomized experiments can be applied to quasi-experiments…

Q: What does a non-statistical evaluation of the graphs of data for the two-factor experiment suggests?

A:

Q: Give 5 examples of situations using this:  1. Retrospective Study 2. Observational Study 3.…

A:

Q: Researchers have observed that high school students who watched educational television programs as…

A: Observational study:If the individuals under the study are just observed and measured based on…

Q: Explain the Different areas, where quasi-experiment research strategy has been applied?

A: Here's  the explanation is as follows; A quasi-experiment is simply defined as not a true…

Q: What is the difference between experiment and testing?

A: Let EXP denote experimenting. Let TES denote testing.

Q: Explain how the average causal effect for a given population can be estimated by using an ideal…

A: Causal effect may be different for different individuals and it is not possible to measure the…

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: Explain the reasons to study randomized controlled experiments?

A:

Q: One of the objectives of a well-designed experiment is to reduce variability O True O False

A:

Q: What is experiment?

A: An experiment is any process that can be repeated in which the results are uncertain and an event is…

Q: Explain the threats to External Validity of quasi-experiment?

A:

Q: Explain the major difference between an experiment and an observation.

A: In an experiment, the researcher manipulates every aspect for deriving a conclusion. In…

Q: Explain if there was a statistically significant difference between the group means. did you arrive…

A: Test is that whether there was a difference between the three means. Level of significance = 0.01

Q: Discuss the basic strategy for comparing the means of two populations based on a simple random…

A: Explain the basic strategy for comparing the means of the two populations based on a simple random…

Q: Explain the concept of Quasi-Experiments?

A:

Q: If the null hypothesis is true, then what does the distribution of sample means?

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…