20. Which among the following variables is likely to be a dependent variable?
Q: За. dementia patients in a nursing home, disruptive or aggressive behavior was recorded for full…
A: If one variable is depending on the other variable then we say that these are paired observations.…
Q: Sociologists suspect there's is a relationship between education level and level of social activity…
A: It is needed to test, whether the there is a relationship between education level and level of…
Q: The equation of a regression line between two variables x and y and the were computed as shown here.…
A: Given
Q: Determine the causal relationship which best describes each situation. Assume a strong positive…
A: Cause and effect relationship: It is a case in which one event causes the another event to happen.…
Q: A study was recently conducted by Major League Baseball to determine whether there is a correlation…
A: In the given problem, there is two variable. One is the attendance of games and the other is the…
Q: a) Identify the independent variable and the dependent variable in this relation. b) Based on the…
A: The owner of a local restaurant wants to determine if the tips earned during a typical Saturday…
Q: Which is the following is not true about an independent variable? a. an independent variable is…
A: independent variable is a variable that is manipulated or changed by the researcher in an…
Q: The following data was collected to explore how a student's age and GPA affect the number of parking…
A: Solution
Q: When a researcher uses a one tailed test, she/he expects the independent variable to have? A. some…
A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…
Q: If the variable “Attractiveness” increases and the variable “Weight” appears to go down, we would…
A: Correlation: The extent linear relation between the two variables is called correlation. Positive…
Q: You use “number of hours spent relaxing” as the dependent variable in a study. Choose two possible…
A: Are dependent variable is the one that is affected by the change in the value of the independent…
Q: 2. In Canada, fuel consumption ratings for vehicles are expressed in L/100 km, or the number of…
A: We need to find equation of line that best fits.
Q: ) Which of the following represents the closest relationship between two variables? Or= -0.50…
A:
Q: A scientist predicts that engineers are more creative than physicians. On a standard creativity…
A: The one-sample z-test is used to test whether the mean of a population is greater than, less than,…
Q: 6. A group of 11 students was selected at random and asked for their high school GPA and their…
A: There is a linear relationship between the high school GPA and freshmen GPA and we would like to be…
Q: 3. Determine if the correlation between the two given variables is likely to be positive or…
A: Correlation represents the linear relation ship between two variables. It ranges from -1 to +1.…
Q: A data contains 17 predictors with DS and DW as categorical variable. X1, X2, X3, X4, X5, DS, DW,…
A: To check for linearity, independence, normal distribution, and equal variance conditions in a…
Q: Which of the following statements is TRUE? a.)A high correlation can indicate a relationship but…
A: The objective is to identify the correct statement regrading correlation, which has been interpreted…
Q: Which one of these describes a positive correlation? A) Increases in X tend to be accompanied by…
A: We have given the multiple choice question about the correlation coefficient. Which one of these…
Q: 4. For each of the following situations, state the independent variable and the dependent variable.…
A:
Q: There is a negative correlation between the number of flu cases reported each week throughout the…
A: Correlation is the measure of the strength of the association between two random variables. A…
Q: 6) The following results are from data that were collected from the appraisal of houses based on a…
A: Using given summary tables, we have to test the whether the groups ROOMS, BATHS and GARAGE are…
Q: The following sample contains values of the price and quantity sold of a particular commodity. Use…
A: Given that Price (X) 6.00 3.00 7.00 1.00 2.00 8.00 Quantity sold (Y) 53 67…
Q: Construct potential hypotheses or research questions to relate the variables in each of the…
A:
Q: searchers infer causality, they are claiming: the independent variable is having an effect on…
A: The variables that defined a relationship between effect and cause are known as the dependent…
Q: A study provides data on variables that may be related to the number of weeks a manufacturing worker…
A: Solution: From the given information, the dependent variable is the number of weeks and the…
Step by step
Solved in 2 steps
- What is the relationship between q and p?The following data was collected to explore how a student's age and GPA affect the number of parking tickets they receive in a given year. The dependent variable is the number of parking tickets, the first independent variable (x1) is the student's age, and the second independent variable (x2) is the student's GPA. Age, GPA, Number of Tickets 24 4 9 23 3 8 22 2 8 22 2 5 22 2 3 20 2 1 18 2 1 18 2 0 18 2 0 Step 1 of 2 : Find the p-value for the regression equation that fits the given data. Round your answer to four decimal places.Q. 14: The number of faculty and the number of students are shown for a random selection of small colleges in table. Is there a relationship between the two variables? Faculty Students 99 110 113 116 138 174 220 1353 1290 1091 1213 1384 1283 2075 Q. 15: Use the data Q14 Switch x and y and repeat the process. Which do you think is really the independent variable? Q. 16: Using the data Q14 find the coefficient of regression and comment on its sign. Q. 17: Fit the regression line on the data given in Q14. Q. 18: Plot data Ql14 on scatter plot and fit regression line on it and discuss errors.
- 1.16 Income and education in US counties: The scatterplot below shows the relationship between per capita income (in thousands of dollars) and percent of population with a bachelor's degree in 3,143 counties in the US in 2010. Per capita income (in $1,000) 60 40- 20- a) What is the explanatory variable? O Per Capita Income (in $1000s) O Percent with a Bachelor's Degree 10 30 Percent with Bachelor's degree b) What is the response variable? 5) Baby Learni... 50 O Percent with a Bachelor's Degree O Per Capita Income (in $1000s) 70Indicate which correlation coefficient represents a stronger relation between two variables A) -.85 B) +.65 C) 0.00 D) -.70Which of the following would cause FOBT to increase A. An increase in the difference between the means b. An increase in the magnitude of the independent variables affect c. An increase in the difference between the means and an increase in the within groups variability d. An increase in the difference between the means and an increase in the magnitude of the independent variables of effect e. An increase in the within-groups variability
- Identify the independent variable, the dependent variable, and the unit of analysis in the following hypothesis: families that eat dinner together regularly have closer relationships than those who do not.The following sample contains values of the price and quantity sold of a particular commodity. Use quantity sold as the dependent variable Y. Price (X) 6.00 3.00 7.00 1.00 2.00 8.00 Quantity sold (Y) 53 67 48 76 70 28 ∑x}=27, ∑y=342, ∑x2=163, ∑xy=1295, ∑y2 = 21062, n=6. d. Find the coefficient of determination and interpret .Pls explain the selected option in 5-6 sentence only Which of the following statement(s) are false? (Select all that apply.) a) Correlation measures the strength of a linear relationship between two quantitative variables.-1 ≤ r ≤ 1 b) The sign of r tells the direction of the linear relationship between two quantitative variables. c) The correlation has the same units (e.g., feet or minutes) as the explanatory variable. d) If the correlation between two quantitative variables is zero, then there cannot be a relationship between these two variables.
- O O O Less than 8 8. A sample of 400 Goshen households is selected and several variables are recorded. Which of the following statements is correct? * O Total household Income is a ratio level data. Socioeconomic status (recorded as "low income", "middle income", or "high income" is nominal level data. O The number of people living in a household is a continuous variable. O The primary language spoke in the household is ordinal level data.9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. с. 150 150 150 100 100 100 50 50 50 0 2 4 6 x 0 2 4 6x 0 2 4 6 xe. Compute the covariance and correlation coefficient r between the right tire pressure. f. How do you know the relationship between pressure in the left and right tires is positive. g. What value would a correlation coefficient (r) be close to if there was no (linear) relationship between the 2 tire pressures?
