Imagine a researcher wanted to examine the effects of gender (male or female) and employment type (seasonal, part-time, or full-time) on number of years employed. How many factors are in this study?  (1), can not determine (2). 6 (3). 3 (4). 2

Q: Individuals at risk for colon cancer are advised to have a colonoscopy beginning at age 50. The…

A: Given that: Total number of patients = 250   Colon cancer: yes Colon cancer: no Total…

Q: A two factor research study has 2 levels of factor A and 3 of factor B with n=8 participants in each…

A: The number of levels of factor A is 2.

Q: How many separate groups of participants would be needed for an independent-measures, two-factor…

A: Given information- We have given the two-factor study, factor A and factor B. Number of levels in…

Q: Regarding the test of significance for the usefulness of the predictor variables  x1, x2, and x3 in…

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Q: In a previous study, it has already been determined that a common ADD treatment is effective, but…

A: Answer is  3 Two groups: 300mg of new drug/500mg of new drug

Q: A wine producer is interested in the effect of two oak types and two fermentation temperature ( 78…

A: Introduction: A factor is an independent variable in an experimental study whose levels are…

Q: 5. A study reporting that college students who are on Facebook (or have it running in the background…

A: Given the data of Facebook user or non users grades with different student categories as…

Q: Consider a study in which the sum of squares based on an experimental group of 15 participants is…

A: Given:

Q: One year at a university, the algebra course director decided to experiment with a new teaching…

A: From the given information, The confidence interval σ1/σ2 is 0.74 and 1.44 There is a 90% chance…

Q: If a study determines the difference in average salary for sub population of people with blue eyes…

A: Given that the difference in average salary for sub-populations of people with blue eyes and people…

Q: If the 95% Cl for the variable "Party Identification" includes zero, this variable is statistically…

A: We have given the statement about the party identification

Q: A lamp manufacturer company tests the two new models of LED spotlights for commercial use, trying to…

A: The hypothesis will be stated  H0: μ1= μ2H1: μ1≠ μ2 This is a two tailed hypothesis test ANOVA test…

Q: 8. An experiment was conducted to investigate two factors using factor has 3 levels, while the…

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Q: What is the difference between the (Simple) Power Rule and the General Power Rule?

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Q: Explain any five factors affecting power in hypothesis?

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Q: A researcher would like to use a factorial study to compare two programs designed to help people…

A: In a factorial design, there can be several factors. These factors can be classified as: 1…

Q: Suppose X - N(-1, 2). What is the z-score of x = 2?

A:

Q: 5. A study reporting that college students who are on Facebook (or have it running in the background…

A: Given the data of Facebook users and non users for middle school students, high school students and…

Q: How can you make sure your factorial design is well designed?

A: Factorial designed is used to determine the effects of multiple levels on a response.

Q: A study using the chi-square test of Independence has 3 categories of one variable and 2 categories…

A: Given that the one variable has 3 categories and the other variable has 2 categories.

Q: A statistician wants to determine if there is a difference in the fuel efficiency of cars between…

A: Given info: The claim of the test is there is a difference in the fuel efficiency of cars between…

Q: a total of 20 applicants came in for a job interview. Among them, four were 45 years old, six were…

A: Given Data : X f 45 4 39 6 42 3 40 5 35 2 N = 20 Mean =x =∑fxN Var=1N∑fx2-x2 SD=Var

Q: Explain with example two-factor ANOVA.

A: Two way ANOVA is a statistical measure in which there are two independent categorical value and one…

Q: If there is a main effect of age, is the main effect of age significant? Why?  Provide F-statistic,…

A:

Q: A study using the chi-square test of independence has 4 categories of one variables and 2 categories…

A: We have given that  4 categories of one variables=r 2 categories for its other variables=c

Q: A two-factor study with four levels of factor A and two levels of factor B uses a separate group of…

A: The number of levels in factor A is 4. The number of levels in factor B is 2. Also, n = 8.

Q: Suppose that in a research it was discovered that those who majored in math, engineering, or…

A: The independent variable is the variable changed or monitored by the experimenter and is assumed to…

Q: A child psychologist investigated how gender (male, female) and amount of TV watching per day (less…

A: A psychological study deals with the study of behaviour, people and societies. It utilizes data to…

Q: Suppose, you are running an experiment for 'x' times where the probability of success in a single…

A: Given : It is a binomial distribution with two outcomes as either success or failure. Probability of…

Q: You are concerned that nausea may be a side effect of Tamiflu, but you cannot jJust give Tamiflu to…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: A few years ago, a cola manufacturer invited New Zealand consumers to take a blind taste test.…

A: Null Hypothesis contain 'less than or equal to ( <= )' , 'greater than or equal to ( >= )' or…

Q: A large oil company is studying the number of gallons of gasoline purchased per customer at…

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Q: 3. An experiment was conducted to investigate two factors using the analysis of factor has 3 levels,…

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Q: Suppose that you conducted a study of 150 elementary school students. You wanted to fin out if they…

A: d) The probability that a student was in home school in fall given that they were in homeschool in…

Q: Suppose X~ N(-1, 2). What is the z-score of x = 2?

A:

Q: In a research study to test a new drug on patients with brain cancer, patients were divided into 2…

A: In an observational study, researcher observes the individuals and measure the outcomes. In an…

Q: Suppose, you are running an experiment for 1024 times where the probability of success in a single…

A: Given: The number of times an experiment runs is n=1024. The probability of success in a single…

Q: A certain manufacturing company encourages it's employees to practice zero tolerance when it comes…

A: Solution: The percentage of the accidents for the condition combination as  Shift  Unsafe…

Q: What is the benefit of a factorial design that is not present in a single factor study is that you…

A: Factorial designs are used to study the effects of several effects and the interactions among the…

Q: A survey was conducted in respect of marital status and success in examination. Out of 2,000 persons…

A: For boys: According to given information in the question, we have (AB)=140(AB)=140, denotes married…

Q: How many independent variables entered in the overall model and was/were not able to enter? What is…

A: We have given that the summary data in table form of the model.

Q: Suppose the prevalence of "dance fever" at a college is 40% among women and 10% among men. If there…

A: Given that the prevalence of dance fever among women is 40%. The prevalence of dance fever among men…

Q: What is the missing value for the degrees of freedom for the "within" row (marked by a ?)?

A: It is given that Number of groups k = 4 Number of observations n = 31

Q: researcher uncovers that there is a significant interaction between the factor of marital status…

A: This is a 2*2 design  Here the factors  are marital status (i.e., married or non-married) and…

Q: If the test result is significant at 5% level, it must also be significant at 1% level.

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Q: If I was calculating the variance of this list of numbers (attached), do I need to include the "no…

A: Here, there are 14 observations and no home games indicate the value “0”.

Q: Discuss the difference between an experimental factor and a classification factor.

A: Experimental factors are those that you can specify and set yourself. For example, the maximum…

Q: Suppose that the blood pressure for a randomly selected patient has an average of 22 and variance of…

A: Random variables are of 2 types, discrete and continuous. Normal distribution is a continuous…

Q: What are two reasons for conducting a study with more than two levels of a factor

A: The two reasons for conduction a study with more than two levels of a factor are explained as given…