Why would the male lifespan not be the dependent variable?
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Why would the male lifespan not be the dependent variable?
In an experiment, the independent variable is the variable that is deliberately manipulated or controlled by the researcher to determine its effect on the dependent variable. The dependent variable, on the other hand, is the variable that is measured or observed to determine the outcome or response to changes in the independent variable.
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- 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 (x1x1) is the student's age, and the second independent variable (x2x2) is the student's GPA. Effects on Number of Parking Tickets Age GPA Number of Tickets 17 3 1 20 3 4 20 3 4 22 3 4 22 33 6 23 33 6 23 44 7 24 44 7 25 44 8 Step 1 of 2: Find the p-value for the regression equation that fits the given data. Round your answer to four decimal places. Step 2 of 2: Determine if a statistically significant linear relationship exists between the independent and dependent variables at the 0.010.01 level of significance. If the relationship is statistically significant, identify the multiple regression equation that best fits the data, rounding the answers to three decimal places. Otherwise, indicate that there is not enough evidence to show…A sociologist is interested in determining if those shopping at the mall tend to spend more money if they are with friends versus if they are shopping alone. She interviews 8 shoppers who regularly shop at the mall, both alone and with friends, and inquires about the following two variables: X1-amount spent when they last shopped alone and X2 amount spent when they last shopped with their friends. Below is the data she collected: Shopper X1 X2 1 35 72 10 15 3 80 100 55 90 35 55 23 58 25 25 138 210 (a) What type of test do we need to conduct and what assumptions are necessary? (b) Assuming our assumptions in (a) are valid, by hand, conduct an appropriate test of significance at 2% level of significance to determine if shoppers spend more money when they are with friends than when they are alone using a rejection region approach.If the dependent variable Y correlates with the independent variable X, this suggest that X has a causal impact on Y. Select one: True False
- Which of the following is the dependent variable in an experiment studying the effect of rainfall on cultivation? O a. Cultivation O b. All c. The researcher O d. RainfallThe 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 (x1x1) is the student's age, and the second independent variable (x2x2) is the student's GPA. Effects on Number of Parking Tickets Age GPA Number of Tickets 17 2 0 18 2 0 18 3 2 19 3 4 19 3 4 21 3 4 21 4 7 21 4 7 24 4 7 Step 1 of 2 : Find the p-value for the regression equation that fits the given data. Round your answer to four decimal places. what is the P value for the refression?The following data was collected to explore how the average number of hours a student studies per night and the student's GPA affect their ACT score. The dependent variable is the ACT score, the first independent variable (x1) is the number of hours spent studying, and the second independent variable (x2) is the student's GPA. Effects on ACT Scores Study Hours GPA ACT Score 0 2 17 1 2 20 3 2 25 5 4 26 5 4 26 Copy Data Step 2 of 2: Determine if a statistically significant linear relationship exists between the independent and dependent variables at the 0.05 level of significance. If the relationship is statistically significant, identify the multiple regression equation that best fits the data, rounding the answers to three decimal places. Otherwise, indicate that there is not enough evidence to show that the relationship is statistically significant. Answer How to enter your answer (opens in new window) 2 Points Keypad Keyboard Shortcuts Selecting a checkbox will replace the entered…
- If we want to estimate sales based on the test scores, which variable is the dependent variable and which is the independent variable? Justify.If a researcher found a significant interaction between Factor A and Factor B, what does this mean (in general)? O Both Factor A & Factor B have independent effects. O The effect of Factor A on the dependent variable depends on the level of Factor B. O Only Factor A is significant. none of the above.A scientist, who wants to study the effects of precipitation on rice crops, sets up an experiment with 4 groups of rice crops. Rice crop harvest vs. precipitation level Group B Group A 0 150 Group C Precipitation (cm/annually) Harvest (pounds/acre) 0 60 Which statement best describes the relationship between the dependent and independent variables in this study? 20 O The amount of precipitation is dependent on the amount of rice harvest. O The amount of rice harvest is positively correlated with the increase in precipitation. The amount of rice harvest is not affected by the amount of precipitation. The amount of rice harvest is negatively correlated with the increase in precipitation. 200 Group D 40 300
- A researcher is interested in explaining why suicide rates vary from state to state. She examines the relationship between suicide rates and divorce rates, basing her hypothesis on Durkheim's suicide theory. The hypothesis is that an increase in the divorce rate results in an increase in the suicide rate. Therefore, her independent variable is _______P= and C.Ice cream has been erroneously reported to cause shark attacks. However, better research studies highlight that both increases in ice cream consumption and shark attacks are actually caused by high temperatures in the summer months. Which of the following describes high temperatures as it related to ice cream consumption and shark attacks? It is a mediator. It is a confounder. It is the outcome variable. It is the dependent variable.
