Some research questions are summarized below. For each situation, identify all variables and characterize them in terms of the level of measurement. Identify which variables are dependent and which are independent.    a. Are male and female entrepreneurs different in terms of their business success (measured in how much money they made last year)? b. Do years in college change students’ perceptions of their resilience, grit, and perseverance (measured with scales)? c. How do international marriages (marriage between two people from different countries) change over time(measured in years)?

2. A real estate expert wanted to find the relationship between the sale price of houses and various characteristics of the houses. He collected data on five variables, recorded in the table, for 12 houses that were sold recently. The five variables are: Sale price of a house in thousands of dollars. Size of the lot in acres. Price: Lot Size: Living Area: Living area in square feet. Age: Type of house: town house (T) or Villa (V) Age of a house in years. Living Area Price Lot Size Age Туре of house 255 1.4 2500 8 T 178 0.9 2250 12 263 1.8 2900 127 0.7 1800 24 305 2.6 3200 10 164 1.2 2400 18 245 2.1 2700 9 146 1.1 2050 28 287 2.8 2850 13 189 1.6 2600 9 211 1.7 2300 8. 123 0.5 1700 11 a) Find the general regression equation b) Which independent variables are linearly related to price? c) How is the fit of the model? E BBBB BB>>}>> >{

Read the fictional scenario below and the Jacobsen text Introduction to Health Research Methods: A Practical Guide chapter 13. Then formulate qualitative methods which could be used to determine attitudes and beliefs toward the public health issue described in the scenario. Use the required headings shown below as a template:

2. A real estate expert wanted to find the relationship between the sale price of houses and various characteristics of the houses. He collected data on five variables, recorded in the table, for 12 houses that were sold recently. The five variables are: Sale price of a house in thousands of dollars. Size of the lot in acres. Price: Lot Size: Living Area: Living area in square feet. Age: Type of house: town house (T) or Villa (V) Age of a house in years. Price Lot Size Living Area Age Туре of house 255 1.4 2500 8 T 178 0.9 2250 12 T T. T. T. 263 1.8 2900 5 0.7 2.6 127 1800 24 305 3200 10 164 1.2 2400 18 245 2.1 2700 T V 146 1.1 2050 28 287 2.8 2850 13 V 189 1.6 2600 9 211 1.7 2300 8 V 123 0.5 1700 11 V a) Find the regression equation for the town house b) Find the regression equation for the Villa c) What is the price of a town house with a lot size of 1.3, living area of 1800, and is 7 years old? EBBBBE A> >}>l> >{

Consider the following scenario and answer the questions below: The ornithologist decided to investigate the effect of temperature on the migration of North American birds. Develop a hypothesis in the appropriate format. Identify the independent variable. Identify the dependent variable. Plan an investigation (what would she do to collect data?). Did she engage in basic science or applied science? Explain. Did she engage in inductive or deductive reasoning? Explain

Bicycling World, a magazine devoted to cycling, reviews hundreds of bicycles throughoutthe year. Its Road-Race category contains reviews of bicycles used by riders primarily interestedin racing. One of the most important factors in selecting a bicycle for racing is itsweight. The following data show the weight (pounds) and price ($) for ten racing bicyclesreviewed by the magazine: a. Develop a scatter chart with weight as the independent variable. What does the scatterchart indicate about the relationship between the weight and price of these bicycles?b. Use the data to develop an estimated regression equation that could be used to estimatethe price for a bicycle, given its weight. What is the estimated regression model?c. Test whether each of the regression parameters b0 and b1 is equal to zero at a 0.05level of significance. What are the correct interpretations of the estimated regressionparameters? Are these interpretations reasonable?d. How much of the variation in the prices of…

Coffee is a leading export from several developing countries. When coffee prices are high, farmers often clear forest to plant more coffee trees. Here are five years’ data on prices paid to coffee growers in Columbia and the percent of forest area lost in a national park that lies in a coffee producing region: Price (cents per pound) 29 40 54 55 72 Forest lost (%) 0.49 1.59 1.69 1.82 3.10 Question: Make a scatterplot. Which one is the explanatory variable, and which one is the response variable? What kind of pattern does your plot shows?

Exercise 5: Index Numbers Statistica displayed the following chart of the most dangerous jobs in America during 2020. The data is sourced from the U.S. Bureau of Labor Statistics and show the number of deaths on the job per 100,000 workers.

1. Identify whether the variable in the information below is qualitative or quantitative. A nurse collects blood from kids and measure their blood-sugar content. This measure of blood-sugar concentration is a variable. a. quantitative b. qualitative c. qualitative as well as quantitative d. neither qualitative nor quantitative 2. Identify the technique for gathering data in the study below. A pharmaceutical firm wants test the effectiveness of a new drug. It wants to know if the new drug is significantly stronger than the conventional drug. This is a/an study. a. observational b. experimental c. census d. sampling 3. You want to plot a frequency graph of daily rainfall, with rainfalls (inches) on the horizontal axis. You will use a a. bar chart b. histogram c. cumulative frequency d. best fit line 4. Frequency of categorical data are displayed using a a. bar chart b. histogram c. time series graph d. best fit line

Determine which of the following variables are quantitative. A: Rating of the effectiveness of a new cold remedy (Not effective, Somewhat effective,  Very effective) B: Amount of time spent assembling a five-shelf bookcase. C. Number of children in a family. Group of answer choices A and B and C B and C A and C A and B