Math Promblems
D Question 34 0 pts Instructor A has an average final grade score of 71.28 with a standard deviation of 6.24. What percentage of students earn a C or higher in Instructor A's class? (Assume that a C is a final grade of 70.00 or higher.) Note: Do not include the % symbol in your answer. (Worth 5 extra credit points) The dot in a box plot indicates the [blank]. (Worth 2 extra credit points) D Question 32 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the IQR? (Worth 2 extra credit points} D Question 30 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the standard deviation? (Worth 2 extra credit points) Question 31 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the variance? (Worth 2 extra credit points} Question 28 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the mean? (Worth 2 extra credit points) Question 29 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the range? (Worth 2 extra credit points) Question 26 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the mode? (Worth 2 extra credit points) Question 27 0 pts A researcher gathers a sample of 15 movie lovers and asks them their opinion about a recent movie. She asks them to rate it on a scale of 1-5, with 1 indicating they hated the movie and 5 indicating they loved the movie. Below were their responses: 432151532544423 What is the median? (Worth 2 extra credit points) D Question 24 0 pts The 3 measures of variability are :| , l:| , and (Worth 3 extra credit points) Question 25 0 pts The [blank] indicates the middle 50% of all values in a distribution. (Worth 2 extra credit points) Question 22 0 pts [Blank] is the measure of central tendency that is considered the middlemost value. Half of all values are greater than it and half of all values are less than it. (Worth 2 extra credit points) Question 23 0 pts When a data set is skewed, the researcher should not report the [blank]. (Worth 2 extra credit points) Question 20 0 pts Frequency polygons are particularly useful for [blank] data. (Worth 2 extra credit points) Question 21 0 pts Having a cumulative frequency of 28 for a Test Score of 90 means what? (Worth 2 extra credit points) 0 90 people scored at or below 28 on the test 0 90% of people scored at or below 28 on the test 0 28 people scored at or below 90 on the test 0 28% of people scored at or below 90 on the test D Question 18 0 pts The [blank] variable is considered the presumed cause in a hypothesis. (Worth 2 extra credit points) Question 19 0 pts Classify the measurement type/type of data in the following example: An individual's religion is an example of aln) [blank] variable (Worth 2 extra credit points) Question 17 0 pts Statistics are used for two main reasons. What are those reasons? (Worth 2 extra credit points) 0 decision making 0 description 0 both of the above 0 neither of the above Question 15 10 pts A recent Gallup web survey of 36,463 U.S. adults found that 21,149 of them believe policing in the United States needs major changes. Construct the 95% Condence Interval for the proportion of all US. adults who believe policing in the United States needs major changes. The 95% condence interval for the proportion of all U.S. adults who favor amending the Constitution so the presidential candidate who believe policing in the United States needs major changes is to Question 16 5 pts A recent Gallup web survey of 36,463 U.S. adults found that 21,149 of them believe policing in the United States needs major changes. Construct the 95% Condence Interval for the proportion of all U.S. adults who believe policing in the United States needs major changes. How would you express this Condence Interval in percentage form (do not include the % symbol)? %to % Question 13 5 pts A recent Gallup web survey of 36,463 U.S. adults found that 21,149 of them believe policing in the United States needs major changes. Construct the 95% Condence Interval for the proportion of all US. adults who believe policing in the United States needs major changes. What is the sample proportion (P)? Question 14 5 pts A recent Gallup web survey of 36,463 U.S. adults found that 21,149 of them believe policing in the United States needs major changes. Construct the 95% Condence Interval for the proportion of all US adults who believe policing in the United States needs major changes. What is the standard error of the proportion (5p)? Question 11 5 pts A September 2020 Gallup poll of 1,019 U.S. adults found that 61.43% of them favored amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election (abolishing the electoral college). Construct the 95% Condence Interval for the proportion of all U.S. adults who favor amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election. How would you express this Condence Interval in percentage form (do not include the % symbol)? %to % Question 12 5 pts A recent Gallup web survey of 36,463 U.S. adults found that 21,149 of them believe policing in the United States needs major changes. Construct the 95% Condence Interval for the proportion of all U.S. adults who believe policing in the United States needs major changes. What is N in this sample? Question 9 5 pts A September 2020 Gallup poll of 1,019 US. adults found that 61.43% of them favored amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election (abolishing the electoral college). Construct the 95% Condence Interval for the proportion of all US. adults who favor amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election. What is the standard error of the proportion (5p)? D Question 10 10 pts A September 2020 Gallup poll of 1,019 US. adults found that 61.43% of them favored amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election (abolishing the electoral college). Construct the 95% Condence Interval for the proportion of all US. adults who favor amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election. The 95% condence interval for the proportion of all US. adults who favor amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election is to Question 7 5 pts A September 2020 Gallup poll of 1,019 US. adults found that 61.43% of them favored amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election (abolishing the electoral college). Construct the 95% Condence Interval for the proportion of all US. adults who favor amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election. What is N in this sample? D Question 8 5 pts A September 2020 Gallup poll of 1,019 US. adults found that 61.43% of them favored amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election (abolishing the electoral college). Construct the 95% Condence Interval for the proportion of all US. adults who favor amending the Constitution so the presidential candidate who receives the most total votes nationwide wins the election. What is the sample proportion (P)? D Question 6 10 pts A researcher took a random sample of 295 California registered voters and found that the sample proportion that will vote for Candidate A was 0.5327. Construct the 95% Confidence Interval for the proportion of all California registered voters who will vote for Candidate A. A candidate needs at least 50% of the vote to win this election. Based on your confidence interval, is it possible that Candidate A will lose this election? O No, because the entire confidence interval exceeds 50%. No, because part of the confidence interval exceeds 50%. Yes, because the entire confidence interval is less than 50%. Yes, because part of the confidence interval is less than 50%.D Question 4 10 pts A researcher took a random sample of 295 California registered voters and found that the sample proportion that will vote for Candidate A was 0.5327. Construct the 95% Confidence Interval for the proportion of all California registered voters who will vote for Candidate A. The 95% confidence interval for the proportion of all California registered voters who will vote for Candidate A is to D Question 5 5 pts A researcher took a random sample of 295 California registered voters and found that the sample proportion that will vote for Candidate A was 0.5327. Construct the 95% Confidence Interval for the proportion of all California registered voters who will vote for Candidate A. How would you express this Confidence Interval in percentage form (do not include the % symbol)? % to %Question 2 5 pts A researcher took a random sample of 295 California registered voters and found that the sample proportion that will vote for Candidate A was 0.5327. Construct the 95% Condence Interval for the proportion of all California registered voters who will vote for Candidate A. What is the sample proportion (P)? Question 3 5 pts A researcher took a random sample of 295 California registered voters and found that the sample proportion that will vote for Candidate A was 0.5327. Construct the 95% Condence Interval for the proportion of all California registered voters who will vote for Candidate A. What is the standard error of the proportion (5p)? A researcher took a random sample of 295 California registered voters and found that the sample proportion that will vote for Candidate Awas 0.5327. Construct the 95% Condence Interval for the proportion of all California registered voters who will vote for Candidate A. What is N in this sample
