Why do we call the ANOVAs we learned about in this chapter “one-way” ANOVAs?

Q: What is the third quartile

A: We are asked to find the third quartile

Q: When your date fails to meet the requirements for an ANOVA test, what do you do?

A: given solution: If the data fails normal distribution assumption then ANOVA is invalid.The simple…

Q: Spencer would like to study how gender and PTSD in veterans impacts risk for dementia. In order to…

A: Here the variables which are being manipulated are Gender and PTSD , while the variable which is…

Q: When is it useful to use ANOVA?

A: let us first understand what is ANOVA  ANOVA  is the statistical model in which we analyze the…

Q: The General Social Survey (GSS) found that 571 out of 670 (85%) Americans answered the question on…

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

Q: What does it mean if the cases are not selected randomly but are assigned randomly to groups?

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

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: statistical significance,

A: What Is Statistical Significance? Statistical significance refers to the claim that a result from…

Q: It would not be ethical to assign one group of children to smoke in order to study the effect. so,…

A: given solution: one evidence can be if their parents,family members,relatives are smoking then we…

Q: A friend of yours is conducting research on disadvantaged youth between the age 18-21 years who have…

A: Given Information: Sample A: The youth who were given home detention for three months. Size of…

Q: The color of the Star Trek uniform represents each crew-member's work area. In the original Star…

A:

Q: A researcher conducted a research that majority of people who died during pandemic bought a new…

A: Given: Research that majority of people who died during pandemic

Q: Stacy conducts a study to look at the effects of season (fall, winter, spring, summer) and type of…

A: Two way ANOVA:   From the given information, the data view of the given variables is,     fall…

Q: what is anova analysis

A: Analysis of variance is a set of mathematical models and their associated estimation procedures that…

Q: what is the z score formula and and reverse z score formula ?

A:

Q: A researcher has a hypothesis that a specific drug may have a higher prevalence of side effects…

A: The hypothesis is that a drug may have a higher prevalence of side effects among members of the…

Q: A scatter diagram cannot be created for more than 100 data values. O True False

A: FALSE

Q: whats an experimental hypothesis?

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

Q: What is research hypothesis?

A:

Q: Explain the logic behind one-way ANOVA.

A:

Q: What is the explanatory variable ?

A: What is the explanatory variable ?

Q: The color of the Star Trek uniform represents each crew-member's work area. In the original Star…

A:

Q: ANCOVA is different from one-way ANOVA in that

A: ANCOVA is a mixture of ANOVA and regression equation i.e there are categorical as well as continuous…

Q: All examples of two-factor studies involve at least two observations per cell. Would it be possible…

A: Yes, It would be possible to perform an ANOVA for a two-factor study having only one observation per…

Q: (our supervisor really appreciates you and, based on your hard work, is often doing her best to get…

A: Given situation, We need to identify some relationship between how much a supervisor appears to be…

Q: A researcher wanted to find out if a man's sense of humor had a significant effect on how he was…

A: Here we have two independent groups who are rating the person on a scale from 1 to 7. We are…

Q: A recent study examined the drinking behaviors of undergraduate college students (male and female…

A: Null Hypothesis is :  (That is, there is no significant difference in the drinking habits of males…

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

A: The assumptions for the z-statics is appropriate as given below:The samples are randomly selected…

Q: Choose the correct null and alternative hypotheses. H0:H0: There is an association between Star Trek…

A: 1. The test is whether there is a connection between uniform color and the fatality rate or not. The…

Q: A method of gathering data when people are asked a series of questions that can be administered by…

A: In a survey, we ask various questions or series of questions by making questionnaires. This…

Q: One study of cell phones and the risk of brain cancer looked at a group of 469 people who have brain…

A: The study was done to know if the use of cell phones and the risk of brain cancer are associated…

Q: Transforming raw scores into z scores allows researchers to

A: By converting a raw score to a z- score, we are expressing that score on a z-score scale, which…

Q: A psychological study wants to analyze the relationship between anxiety and binge drinking; a…

A: Chi-square independence test: The chi-square is a non-parametric test which is used for comparing…

Q: Your supervisor really appreciates you and, based on your hard work, is often doing her best to get…

A: There is some relationship between two variables.

Q: The term clinical means that the study involves people.  True  False

A: Given, The term clinical means that the study involves people.

Q: Explain how F-statistic has two types of degrees of freedom?

A: Introduction: Degrees of freedom can be defined as the number of values in an analysis, that can be…

Q: What are the different statistical procedures and could you explain them?

A: Statistical procedures are scientific procedures that help us analyze data. The data can be in any…

Q: In a 70 item test, Chloe got a score of 50 which is the third quartile. What does it mean?

A: We know that their are 75% data points are lies below the third quartile.

Q: The Commissioner of Health in New York State wanted to study malpractice litigation in New York. A…

A: A sample statistic is a piece of information you get from a fraction of a population. The statistic…

Q: Explain two reasons why the research hypothesis is not tested directly.

A: the null hypothesis is a neutral statement about a population parameter that is never proved or…

Q: Explain what is a Hypothesis and how can we apply Hypothesis Testing into the Statistical world, any…

A: Hypothesis testing in real life is as straight forward as anything, just identify any real life or…

Q: What is the difference between processes that are in statistical control vs. those that are 99.9%…

A: Control limits and specification limits are two concepts used in statistical quality control.

Q: How do i Interpret an output from SPSS for One-way ANOVA What to do if significant

A: Here we want to interpret the one way ANOVA

Q: ANOVA does the following EXCEPT: *

A: here compare given options with characteristics of ANOVA

Q: Why are post hoc tests performed?

A: Analysis of variance test is used to analyse the significant difference among the group means in the…

Q: Describe how you would randomise observations and why it is important that the service user is…

A: Randomization is critical to success of clinical trial experiments.

Q: Describe a scenario where a researcher could use a One-Way ANOVA to answer a research question.

A: A one way ANOVA method is used when it is required to test the significance of the difference in the…