10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South. IV: DV: UA: Level of Measurement (IV): Level of Measurement (DV):
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For Questions 1 and 2, you will read an operational hypothesis. Identify the independent variable (IV), dependent variable (DV), and unit of analysis (UA). For each variable (IV and DV), indicate the appropriate level of measurement.
There is a relationship between political affiliation (on a scale of 1 to 10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South.
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- IV:
- DV:
- UA:
- Level of Measurement (IV):
- Level of Measurement (DV):
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- For Questions 1 and 2, you will read an operational hypothesis. Identify the independent variable (IV), dependent variable (DV), and unit of analysis (UA). For each variable (IV and DV), indicate the appropriate level of measurement. There is a relationship between college tuition rates and college acceptance rates such that colleges with lower tuition rates will have higher acceptance rates. IV: DV: UA: Level of Measurement (IV): Level of Measurement (DV): There is a relationship between political affiliation (on a scale of 1 to 10, where 1 = very liberal and 10 = very conservative) and U.S. geographic regions, such that people living in the Northeast are more likely to consider themselves liberal than people living in the South. IV: DV: UA: Level of Measurement (IV): Level of Measurement (DV):for question 1A, how do you know what the explanatory and response variables are?Suppose you are to design an experiment for the following problems, identify the independent variable(IV), dependent variable (DV), two to three constant factors and the possible control (NEGATIVE OR POSITIVE) to be used in the experiment. 4. What is the effect of the amount of time spent on social media on a person’s anxiety level?Problem: ________________________________________________a. IV ________________________________________________b. DV _______________________________________________c. Constant __________________________________________d. Control Group ______________________________________ 5. Do rice plants grow faster in saline water compared to pure water? Problem: ________________________________________________a. IV ________________________________________________b. DV _______________________________________________c. Constant __________________________________________d. Control Group ______________________________________ Example: 1. Does the type of glue affects…
- Question 5For each of the following tobs values, determine the highest level of significance associated with the decision taken. tobs df Decision (i) 4.000 17 Reject Ha for a two-tailed test (ii) 1.200 120 Reject Ha for a one-tailed test (iii) -2.660 16 Reject Ha for both one-tailed and two-tailed test (iv) -1.586 60 Reject Ha for a one-tailed testFor each of the following settings, define the parameter of interest and write the appropriate null and alternative hypotheses for the test that is described. Scenario 2: According to the Galactic Empire’s study, 0.5% of the people in the galaxy are Jedi. You are interested in determining if the proportion of the Jedi on the planet Tatooine is different than the galaxy’s proportion.Given two estimators X1 and X2 for a population mean, E[X1] = 6, V[X1] = 4, and V[X2] = 5. If the true value of the population mean is 5, which of the following is(are) TRUE? A. X1 is an unbiased estimator.B. X2 is less precise than X1.
- Suppose you are to design an experiment for the following problems, identify the independent variable(IV), dependent variable (DV), two to three constant factors and the possible control to be used in theexperiment. Write your answers in the worksheet. 1. Does the type of laundry detergent affect the cleanliness of clothes?Problem: ________________________________________________a. IV ________________________________________________b. DV _______________________________________________c. Constant __________________________________________d. Control Group ______________________________________ 2. Do bigger dogs have more puppies in a litter?Problem: ________________________________________________a. IV ________________________________________________b. DV _______________________________________________c. Constant __________________________________________d. Control Group ______________________________________ 3. Do homeworks improve students’ grade in Mathematics?Problem:…Question 2Identify the following variables as qualitative or quantitative. (c) the fast-food establishment preferred by customers such as McDonalds orBurger King.(d) the mercury concentration in a sample of tuna.