Please answer #1-5 and #9, having trouble

1. The measures the variability of data values about their mean in units that are the same as the original data values. 2. In a certain town 40% of the registered voters are men and 60% are women. Also 30% are Democrats and 70% are Republicans. If gender and party affiliation are independent, what is the percentage of Democratic women among the registered voters? 3. ( T / F ) Statistical inference is the process of using the sample to draw conclusion about the population. 4. The area under the normal curve between -1 and +1 is about ( 4% / 50% / 68% / 95% / 100% 5. Given the following information H.: J = 8.5, H.: J > 8.5, and Z calculated = 2.53. the p - value is ... ......... ............ 6. For a sample data set, the slope b of the regression line has a positive value. Which of the following is true about the linear correlation coefficient r calculated for the same sample data? a. The value of r will be positive. b. The value of r will be negative. c. The value of r can be positive or negative. d. One must see the data. 7. A Least squares regression line has been found with a coefficient of determination of .75 and a constant term of 1. Therefore, we can conclude that a. the regression line explains 75% of the variation in y. b. the regression line explains 25% of the variation in y. c. the variation in y explains 25% of the variation in x. d. the regression line does not explain 75% of the variation in y. 8. ( T / (F) ) A correlation coefficient of -.75 is stronger than a correlation coefficient of +.50 9. If the linear correlation coefficient equals zero, the slope of the line of best fit equals.... 10. ( T / F ) Chi- Square test for independent and for goodness of Fit Test cannot be two tailed test