Suppose we want to use systolic blood pressure to predict diastolic blood pressure. The explanatory variable is  and the response variable is

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: The yiceld of corn in bushels per acre and the amount of rain in the growing season Identify the…

A: Explanatory variable is the variable which explain or cause effect in response variable. Response…

Q: An estimator for parameter v is consistent if E(v) is close to v when sample size is increased.…

A: Given If E(v) is close to parameter v, the estimator is consistent.

Q: Cite three examples of two variables that are positively correlated and three bivariate data that…

A: Correlation means the relationship between two variables. There are 4 types of correlation.…

Q: IQ scores for subjects with medium lead levels in their blood and another sample of subjects with…

A: Mann-Whitney U test: The Mann-Whitney U test is non-parametric statistical method that is used for…

Q: Researchers studied 208 infants whose brains were temporarily deprived of oxygen due to…

A: Explanatory variable in a study are the independent variables which affect the values of the…

Q: In each situation, indicate the explanatory variable and the response variable. (1) Does meditation…

A: The question is about types of variable Introduction : There are two types of variable Explanatory…

Q: The height and arm span of a sample of 50 teenagers Identify the explanatory variable and the…

A: Here we have to identify the explanatory variable and response variable

Q: In MANOVA, main effects and interaction are assessed on multiple dependent variables (DVs). True or…

A: MANOVA: MANOVA (one-way multivariate analysis of variance) is used to determine the significant…

Q: When would it be appropriate to use a histogram as opposed to a scattergram?

A: Given information: It is provided with two diagrams or graphs or plots: histogram and scatter…

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: k of developing lung cancer among individuals who smoke is 15.0. Which of the following is the most…

A: Relative risk is the ratio of the risk exposure group to the risk of non-exposure group. It is one…

Q: Comparing a census of a large population to a sample drawn from it we expect that the

A: We know, Sample is usually a more practical method of obtaining the desired information.

Q: Do sports drinks help prevent cramps in endurance sports? At the end of a marathon, officials will…

A: Observational study: In observational study, the individuals of the study are observed by the…

Q: What does this information tell you about the variability of the student's performance on the…

A: Given The data is as follows:

Q: Which explanatory variable (hormone x or hormone w) has a stronger relationship with the response…

A: Here it is given that there are two sets of bivariate data collected from animals over the last…

Q: A recent study randomly selected women from various countries around the world and collected…

A:

Q: Is “how long it takes to correctly solve the puzzle” an explanatory variable or response variable?…

A: The variable that explains the expected cause, i.e., in other words, the variable that explains the…

Q: An experiment is conducted to examine the effects of ingesting hot dogs, pizza, ice cream, sour…

A:

Q: Suppose the correlation coefficient is 0.9. The percentage of variation in the response variable…

A:

Q: Does a prep course increase SAT scores? Last year, a school offered an after-school SAT prep class…

A: Note: Hey there! Thank you for the question. As you have posted multiple sub-parts, according to our…

Q: Joe wanted to conduct an experiment where participants were randomly assigned to receive either no…

A: GivenDependent variable = heart rate in beats per minutethe independent variables is amount of…

Q: What is the difference between a population and a sample? Which is described by a parameter and…

A: Determine the difference between the population and sample.   The difference between the population…

Q: High stress equals high fat for kids Stressed kids are more likely to go for high-fat foods and…

A: Observational studies: In this type of study, the researcher observes a particular characteristic on…

Q: What is the explanatory variable ?

A: What is the explanatory variable ?

Q: What is the difference between a STATISTIC and PARAMETER

A: Solution:We have to determine the difference between a STATISTIC and PARAMETER.

Q: What are the response variables and explanatory variables for observing vehicles to see what the…

A: In theory of statistics, response variable is a the dependent variable, where the variation of the…

Q: I cannot find the test statistic for the image of the problem

A: For sample 1 (With almonds): xi xi-x (xi-x)2 3 1.142857 1.306122122 1 -0.85714 0.734694122…

Q: How does having leather seats affect the expected price of the car, controlling for the mileage and…

A: Let us construct the regression equation by using the coefficient. price = 6953 - 0.0841*Mileage +…

Q: If the test statistic falls within the rejection region, you reject H0 in favour of Ha true false

A: In this case, we need to identify the given statement is true or not.

Q: What is the predicted response value? y =

A: Given Regression Equation : and,

Q: Specificity of the association  is best described as When the value of the response variable…

A: *answer:  Specificity of association means an exposure is associated with only one disease or the…

Q: What is the predicted explanatory value? X =

A: The regression equation is y=-3.546x-4.393.

Q: How to decide whether any potential influential observation that you detected is in fact an…

A: Given information: The investigator is specially interested to know, how an influential observation…

Q: What is the empirical rule?

A: The word 'empirical' stands for 'based on observations.  The 68–95–99.7 rule, also known as the…

Q: What type of test would best fit this problem?

A: Given

Q: I want a dataset for my statistics research project. in which i can find at least 3 Quantitative…

A: It is  advertise data set  TV, Radio and Newspaper are independent variable and sale is dependent…

Q: Are the observed frequencies variables? What about the expected frequencies? Explain your answers.

A: Chi-square Distribution: If X ~ N(0,1) then X2 is known as chi-square variate. If X ~ N(µ,σ2) then z…

Q: Relative risk is an ideal form of measurement for a retrospective cohort study design because it…

A:

Q: Rebecca is investigating if height has any effect on red blood cell count. What is the response…

A:

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

A:

Q: A measure of total variation in the observed values of the response variable is the ______. The…

A: Coefficient of determination: The coefficient of determination (R) is the percentage of the total…

Q: If all of the students in a class earn the same score on a quiz, what should be said about the…

A: Given question: If all of the students in a class earn the same score on a quiz, what should be said…

Q: What is the TWO SOURCES OF VARIABILITY?

A: The total variation is portioned as follows: SST=SSTR+SSE

Q: Devise two scenarios where a dependent/matched/paired t-test would be appropriate.  Be sure to…

A: The dependent /matched/paired t-test is used when we have to compare the means for the same group at…

Q: Is the dependent variable is always dependent to the independent variable(s) of the study? Why?

A:

Q: What are the explanatory and response variables?

A: Response variable is defined as the variable which depends on other variable i.e changes on changing…

Q: The difference between an observed value and a predicted value of the response variable is called a…

A: Residual: The difference between the observed value of the response variable and actual value of the…

Q: A group of college students believes that herbal tea has remarkable powers. To test this belief,…

A: Explanatory variable is the variable that causes the changes in the other variables. While the…