Quasi-experimental designs classify cases by:   a.  manipulating independent variables of interest. b. using the naturally occurring status of participants. c. manipulating dependent variables of interest d. using random assignment

Q: Dr. Mackintosh believes a new olfactory therapy would be more successful in promoting weight loss…

A: We have to answer questions based on hypothesis testing.

Q: An operations manager with General Motors corporate offices wishes to determine if the true mean…

A: Given that samples are randomly selected from Detroit (D), Michigan (M) plantThe mean of samples…

Q: None

A: Step 1: Children who were given antibiotics before they were one year old (for example, for ear…

Q: Dr. Farah is an educational psychologist who is interested in studying the potential causal…

A: CORRELATION: The correlation is a statistical technique that is used for analyzing the behavior and…

Q: Kava is a beverage or extract that is made from Piper methysticum, a plant native to the western…

A: It is given that: p^1=0.5299, n1=402p^2=0.2322, n2=521

Q: The recidivism rate for convicted sex offenders is 12%. A warden suspects that this percent is lower…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: What is the null hypothesis for the study?

A: Here it is given that, the number of positive statements - Before Treatment: 7, 6, 9, 5  So, mean…

Q: Computer-mediated communication (CMC) is a form of interaction that heavily involves technology…

A: Given: The data given is:                                                                     CMC…

Q: A magazine reported on the​ "... treatment-emergent adverse events that occurred in​ 2% or more…

A:

Q: A researcher in the field of educational psychology is interested in the effects an open classroom…

A: Z Score CalculationsZ = (M - μ) / √(σ2 / n)Z = (86 - 82) / √(5 / 49)Z = 4 / 0.31944Z = 12.52198

Q: A study was conducted in Thailand to study the association between Vitamin A deficiency and death…

A: A test of independence is useful for testing association between variables.

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.