What is r?

The test statistic for the significance of the model/regression

The test statistic for the significance of the slope coefficient

The correlation coefficient

The goodness of fit

The F-distribution has one calculation to find degree of freedom.

True/False

In the relative frequency table below, which of the following is not a true statement? Whole Table Relative Frequencies - Divide all cells by 240. Sport Utility Vehicle (SUV) Sports Car Totals MathBits.com 21 39 male = 0.09 60 = 0.16 = 0.25 240 240 240 135 45 female 180 = 0.56 = 0.19 = 0.75 240 240 240 156 84 240 Totals = 0.65 = 0.35 =1.00 240 240 240 56% of SUVs are owned by females In this sample, 65% of all vehicles owned are sports cars, 35% are SUVs Females own 75% of the vehicles in this sample 16% of sports cars are owned by malesIn the scatter plot below, what is the relationship between the temperature outside and sales of ice cream? $700 $600 $500 $400 $300 $200 $100 $0 Sales Temperature C 0 Basically linear O No obvious relationship O Curvilinear Why is it important that we can assume that the sample drawn from a population is normally distributed? I It is not important. I All distributions are normally distributed anyway. Because then we cannot use the standardized z-value and analysis using the z-value and standard normal table of probabilities. Because then we can use the standardized z-value and analysis using the z-value and standard normal table of probabilities. When finding the probability of a z-value in the standard normal table, the probability found is between the z-value and the mean, 0. For any population, the average value of all possible sample means computed from ALL possible random samples of a given size from the population does not equal the population mean. Which of the following is NOT an advantage of a written survey? I Potentially Allows for More Questions I Potentially Low Response Rate (5-10%) I If On-Line, Data are Captured Electronically Questions are Standardized for All Respondents Which is the correct order for the major steps of developing a survey? Design the survey instrument, determine the sample size and method, define the issue, pretest the survey, select the sample, send survey, define the population of interest Define the issue, define the population of interest, design the survey instrument, pretest the survey, determine the sample size and method, select the sample, send survey Determine the sample size and method, define the issue, define the population of interest, design the survey instrument, pretest the survey, , select the sample, send survey Design the survey instrument, determine the sample size and method, define the issue, define the population of interest, pretest the survey, select the sample, send survey