Group Quiz #19 MATH 221B

Question 1 2 / 2 pts I completed the Individual Preparation assignment before attending the Group Meeting. Correct! True False Question 2 2 / 2 pts I actively participated in this week's Group Meeting. Correct! True False While you are required to work together on this quiz, each member of the group must submit his or her own answers in order to receive credit. If needed, here's a link to the Normal Probability Applet . You will need the following data set: C When calculating anything, please remember to round to three decimal places, unless otherwise specified. DO NOT ROUND until your calculation is complete. For the next 7 questions please use the following information. This study source was downloaded by from CourseH on :57:28 GMT -06:00 7/18/2019 L19 Quiz: Group Meeting: Hannah Westerman A public opinion poll surveyed a simple random sample of 1000 voters. Respondents were classified by gender (female or male) and by voting preference (Republican, Democrat, or Independent). The results are presented here: In this set of questions, we will explore the research question, “Do men’s voting preferences differ significantly from women’s voting preferences?” Use a level of significance of α=0.05. Question 3 1 / 1 pts Which set of hypotheses is appropriate for addressing the research question? H0: Gender and Voting Preferences are not independent. Ha: Gender and Voting Preferences are independent H0: Republicans and Democrats are not independent. Ha: Females and Males are independent H0: Gender and Voting Preferences are independent. Ha: Gender and Voting Preferences are not independent Correct! Question 4 1 / 1 pts What is the equation for computing the degrees of freedom (df)? df = (number of rows + 1) * (number of columns + 1) This study source was downloaded by from CourseH on :57:28 GMT -06:00 7/18/2019 L19 Quiz: Group Meeting: Hannah Westerman df = number of rows * number of columns Correct! df = (number of rows - 1) * (number of columns - 1) Ques 1 / 1 pts tion 5 What is the correct choice for degrees of freedom (df) for this problem