Question

If two quantitative variables are negatively correlated, this implies that... (select all that apply; you have...

If two quantitative variables are negatively correlated, this implies that... (select all that apply; you have 5 attempts)

The response variable tends to increase when the predictor variable decreases

The response variable tends to decrease when the predictor variable decreases

The LOBF for the data is horizontal

The LOBF for the data is vertical

The LOBF is upward sloping

The LOBF is downward sloping

r < -1

r > 1

r < 0

r > 0

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Correlation .................. imply causation. Which of the values cannot represent correlation? Select ALL that apply. -1.0001...
Correlation .................. imply causation. Which of the values cannot represent correlation? Select ALL that apply. -1.0001 0.5 0 -1/3 73 Do baseball teams that score more runs sell more tickets to their games? Identify response variable and predictor. Response (Y, dependent variable) = # Runs, Predictor (X,independent variable)= # Tickets Response (Y, dependent variable) = #Tickets, Predictor (X,independent variable)= # Runs Response (Y, independent variable) = # Runs, Predictor (X,dependent variable)= # Tickets Response (Y, independent variable) = #Tickets, Predictor...
Suppose you decide to build a model to explain why the average worker in a particular...
Suppose you decide to build a model to explain why the average worker in a particular occupation works more hours during some weeks than during others. What data would you collect to describe this phenomenon? What variable do you believe would supply the major part of the explanation of the variation in hours worked? If you graph the data with hours worked on the vertical axis and your explanatory variable on the horizontal axis, will the relationship be upward-sloping or...
Match the following definitions. You have 2 attempts for each question, and can submit your work...
Match the following definitions. You have 2 attempts for each question, and can submit your work as you go to check. slope, R squared, b0, residual, β0, y, x. The predictor variable. The response variable. The proportion of variation in the response variable that is explained by the model. The predicted change in the response variable for a 1 unit change in that predictor variable, holding all other variables constant. The population value of the response variable when all predictor...
Given are five observations collected in a regression study on two variables. xi 2 6 9...
Given are five observations collected in a regression study on two variables. xi 2 6 9 13 20 yi 9 18 8 25 21 (a) Develop a scatter diagram for these data. A scatter diagram has 5 points plotted on it. The horizontal axis ranges from 0 to 25 and is labeled: x. The vertical axis ranges from 0 to 30 and is labeled: y. The points are plotted from left to right in a downward, diagonal direction starting in...
1. Environmentalists are concerned that Chinook Salmon are becoming infertile due to the increase of toxic...
1. Environmentalists are concerned that Chinook Salmon are becoming infertile due to the increase of toxic chemicals in the Pacific Ocean. Past studies have estimated that the proportion of Chinook that are infertile is 6%. You randomly and independently collect a sample of 240 Chinook and find that 10% of them are infertile. Is this statistically significant evidence that the past studies are underestimating salmon infertility? Answer this question by a. Thinking of this problem as a hypothesis test and...
correlation measures the degree to which two variables are related to one another. Here are the...
correlation measures the degree to which two variables are related to one another. Here are the definitions of the three possibilities: Positive correlations: In this type of correlation, both variables increase or decrease at the same time. A correlation coefficient close to +1.00 indicates a strong positive correlation. Negative correlations: This type of correlation indicates that as the amount of one variable increases, the other decreases (and vice versa). A correlation coefficient close to -1.00 indicates a strong negative correlation....
When you are presented with a Pearson’s correlation coefficient between two variables for which an increase...
When you are presented with a Pearson’s correlation coefficient between two variables for which an increase in one predicts a decrease in the other, and vice versa, the Pearson’s number will be zero; the Pearson number is only meaningful if the variables move in the same direction as one another close to -1 if the correlation is strong, negative but near zero if the correlation is weak close to -1 if the correlation is strong, close to +1 if the...
A statistical program is recommended. Consider the following data for two variables, x and y. xi...
A statistical program is recommended. Consider the following data for two variables, x and y. xi 135 110 130 145 175 160 120 yi 145 105 120 115 130 130 110 (a) Compute the standardized residuals for these data. (Round your answers to two decimal places.) xi yi Standardized Residuals 135 145 110 105 130 120 145 115 175 130 160 130 120 110 Do the data include any outliers? Explain. (Round your answers to two decimal places.) The standardized...
. Resistance in the airways of the lungs decreases ( select all that apply ): A....
. Resistance in the airways of the lungs decreases ( select all that apply ): A. In response to sympathetic ner ve stimulation B. In response to paraympathetic nerve stimulation C. In response to a decrease in alveolar PCO2 D. As the diameter of the tubes decreases E. As the velocity of airflow increases 11. Which of the following would be expected to decrease the rate of oxygen d iffusion acr o ss the alveol a r - capillary membrane...
Consider the following data for two variables, x and y. xi 135 110 130 145 175...
Consider the following data for two variables, x and y. xi 135 110 130 145 175 160 120 yi 145 105 120 115 130 130 110 (a) Compute the standardized residuals for these data. (Round your answers to two decimal places.) xi yi Standardized Residuals 135 145 110 105 130 120 145 115 175 130 160 130 120 110 Do the data include any outliers? Explain. (Round your answers to two decimal places.) The standardized residual with the largest absolute...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT