Assignment#5 1) May1 Business purchased $1200 of inventory from Mapie West. Terms 1/10, 1/20 FOB 2) May2 Business sold $800 inventory to John's Ltd, the cost is $200, Terms 2/5, 1/15 FOB 3) May Business purchased 51000 of inventory from Metro city Inc., paid in cash 4) May7 Business Received John's money. 5) May9 business purchased Inventory 5900 from Wildwind Ltd. Terms: 1/5, 1/10, FOB 6) May11 Business paid the Maple West in full 7) May30 paid Wildwind for the May9 purchase File submissions Type here to search BI C - G N 3 5 6 7 8 Q W E R T . Y U S D F G H J Z C V B N Question 1: List the four conditions to check if the distribution is Binomial or Negative Binomial. Question 2: Pew Research poll found out that 88.7% of a random sample of 1000 American adults supported expanding the role of solar power. a. Compute and interpret a 95% confidence interval for the population proportion. b. Compute and interpret a 90% confidence interval for the population proportion. C. Compute and interpret a 99% confidence interval for the population proportion. Question 3: A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitter. The standard error for this estimate was 2.4%, and a normal distribution may be used to model the sample proportion. Construct a 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter, and interpret the confidence interval in context. Question 4 In 2013, the Pew Research Foundation reported that 45% of U.S. adults report that they live with one or more chronic conditions. However, this value was based on a sample, so it may not be a perfect estimate for the population parameter of interest on its own. The study reported a standard error of about 1.2%, and a normal model may reasonably be used in this setting. Part A: Create a 95% confidence interval for the proportion of U.S. adults who live with one or more chronic conditions. Also interpret the confidence interval in the context of the study. Part B: Identify each of the following statements as true or false. Provide an explanation to justify each of your answers. (a) We can say with certainty that the confidence interval from Exercise 5.7 contains the true percentage of U.S. adults who suffer from a chronic illness. (b) If we repeated this study 1,000 times and constructed a 95% confidence interval for each study, then approximately 950 of those confidence intervals would contain the true fraction of U.S. adults who suffer from chronic illnesses. (c) The poll provides statistically significant evidence (at the _ - 0:05 level) that the percentage of U.S. adults who suffer from chronic illnesses is below 50%. (d) Since the standard error is 1.2%, only 1.2% of people in the study communicated uncertainty about their answer. Assignment#5 1) May1 Business purchased $1200 of inventory from Mapie West. Terms 1/10, 1/20 FOB 2) May2 Business sold $800 inventory to John's Ltd, the cost is $200, Terms 2/5, 1/15 FOB 3) May Business purchased 51000 of inventory from Metro city Inc., paid in cash 4) May7 Business Received John's money. 5) May9 business purchased Inventory 5900 from Wildwind Ltd. Terms: 1/5, 1/10, FOB 6) May11 Business paid the Maple West in full 7) May30 paid Wildwind for the May9 purchase File submissions Type here to search BI C - G N 3 5 6 7 8 Q W E R T . Y U S D F G H J Z C V B N Question 1: List the four conditions to check if the distribution is Binomial or Negative Binomial. Question 2: Pew Research poll found out that 88.7% of a random sample of 1000 American adults supported expanding the role of solar power. a. Compute and interpret a 95% confidence interval for the population proportion. b. Compute and interpret a 90% confidence interval for the population proportion. C. Compute and interpret a 99% confidence interval for the population proportion. Question 3: A poll conducted in 2013 found that 52% of U.S. adult Twitter users get at least some news on Twitter. The standard error for this estimate was 2.4%, and a normal distribution may be used to model the sample proportion. Construct a 99% confidence interval for the fraction of U.S. adult Twitter users who get some news on Twitter, and interpret the confidence interval in context. Question 4 In 2013, the Pew Research Foundation reported that 45% of U.S. adults report that they live with one or more chronic conditions. However, this value was based on a sample, so it may not be a perfect estimate for the population parameter of interest on its own. The study reported a standard error of about 1.2%, and a normal model may reasonably be used in this setting. Part A: Create a 95% confidence interval for the proportion of U.S. adults who live with one or more chronic conditions. Also interpret the confidence interval in the context of the study. Part B: Identify each of the following statements as true or false. Provide an explanation to justify each of your answers. (a) We can say with certainty that the confidence interval from Exercise 5.7 contains the true percentage of U.S. adults who suffer from a chronic illness. (b) If we repeated this study 1,000 times and constructed a 95% confidence interval for each study, then approximately 950 of those confidence intervals would contain the true fraction of U.S. adults who suffer from chronic illnesses. (c) The poll provides statistically significant evidence (at the _ - 0:05 level) that the percentage of U.S. adults who suffer from chronic illnesses is below 50%. (d) Since the standard error is 1.2%, only 1.2% of people in the study communicated uncertainty about their