STAT_1 0A_Practice Score: 125/17 4/6 answered 0 Question 4 v ( > Questions 46: Use the DCMP inference for a Population Proportion tool at pszlldcmathpathways.shinyapps.iollnference will to answer the following questions. Score on last try: 1.5 of4 pts. See Details for more. > Next question You can retry this question below According to Reuters, a study commissioned by the National Coffee Association surveyed 3,000 Americans about their coffee-drinking habits.1 The survey found that out of the 3,000 Americans, 1,920 said they drink a cup of coffee every day. PartA: We will assume that random sampling was used and that the sample was less than 10% of the population. Is it reasonable to assume that the sampling distribution of the sample proportions was approximately normal? Fill in the blanks. Yes v V 0' ,the sample was v J 0" large enough, so it is v / 0' reasonable to assume that the distribution of the sample proportions was approximately normal. Check the sample size condition to justify your answer. 3000( J = > 3000(1 ) II V Part B: Create a 95% confidence interval to estimate the proportion of Americans who said they drink coffee every day. Write the confidence interval in :l: format. Select an answer v Part B: Create a 95% confidence interval to estimate the proportion of Americans who said they drink coffee every day. Write the confidence interval in _ format. Select an answer X Part C: nterval in interval notation form (lower bound, upper bound). Round number + es. Part D: Do you think that the majority (over 50%) of Americans drink coffee every day? Fill in the blanks. Yes vy , since the entire interval VV was above V 50%. Reuters. (2018, March 17). Americans are drinking a daily cup of coffee at the highest level in six years: survey. https://www.reuters.com/article/us-coffee-conference-survey/americans-are-drinking-a- daily-cup-of-coffee-at-the-highest-level-in-six-years-survey-idUSKCN1GTOKU Calculator Submit QuestionPart B: Create a 95% confidence interval to estimate the proportion of Americans who said they drink coffee every day. Write the confidence interval in + format. Select an answer v Part C: Write the confidence interval in interval notation form (lower bound, upper bound). Round numbers to four decimal places. Part D: Do you think that the majority (over 50%) of Americans drink coffee every day? Fill in the blanks. Yes vy , since the entire interval vv was above V 50%. Reuters. (2018, March 17). Americans are drinking a daily cup of coffee at the highest level in six years: survey. https://www.reuters.com/article/us-coffee-conference-survey/americans-are-drinking-a- daily-cup-of-coffee-at-the-highest-level-in-six-years-survey-idUSKCN1GTOKU Calculator Submit QuestionQuestion 5 v Next question According to a well-being survey of 335,050 adults done by Gallup polls, 172,886 Americans reported exercising three or more days per week for at least 30 minutes.1 Part A: We will assume that random sampling was used and that the sample was less than 10% of the population. Is it reasonable to assume that the sampling distribution of the sample proportions is approximately normal? Check the sample size condition tojustify your answer. O No, the sample was not large enough, so it is not reasonable to assume that the distribution ofthe sample proportions is approximately normal. (9 Yes, the sample was large enough, so it is reasonable to assume that the distribution of the sample proportions is approximately normal. 06\" Part B: Create a 90% confidence interval to estimate the proportion of Americans who said they exercise three or more days per week for at least 30 minutes. Write the interval in interval notation form (lower bound, upper bound) and round all numbers to four decimal places. 0.78 x 04 1Agadoni, L. (2017, November 21 ). Facts about exercisefor kids. Healthy Living. https://healthyliving.azcentral.com/exercise-kids-5011.html E Calculator 0 Question 6 v Questions 46: Use the DCMP Inference for a Population Proportion tool at Mp5:l/dcmathpathwaysshinygppsiollnference will : to answer the following questions. Score on last try: 1 of2 pts. See Details for more. You can retry this question below According to a national survey conducted for the Carton Council of North America, 2,250 out of the 2,500 respondents surveyed believe recycling is important and that people should do what they can to try and recycle.1 Part A: We will assume that random sampling was used and that the sample was less than 10% of the population. Is it reasonable to assume that the sampling distribution ofthe sample proportions is approximately normal? Check the sample size condition to justify your answer. O No, the sample was not large enough, so it is not reasonable to assume that the distribution of the sample proportions is approximately normal. Yes, the sample was large enough, so it is reasonable to assume that the distribution of the sample proportions is approximately normal. C16\" Part B: Create a 99% condence interval to estimate the pmportion of Americans who believe recycling is important and that people should do what they can to try and recycle. Write the interval in interval notation form (lower bound, upper bound) and round all numbers to four decimal places. 1Business Wire. (2016, April 6). Consumers ovenvhelmingly believe recycling is important. https:l/www.businesswire.comlnewslhomelZOi 60406005465len/ConsumersOverwhelmingly- RecyclingImporta nt E Calculator STAT_10C_Practice Score: 6/7 7/7 answered X Question 6 Use technology to calculate the minimum sample size needed to achieve the desired margin of error. Score on last try: 0 of 1 pts. See Details for more. > Next question You can retry this question below A public health official responding to an outbreak of measles needs to estimate the vaccination rate in the community. The official will use a confidence interval of 95% and a margin of error of 2%, but they do not have an estimate for the population proportion. 0.02 X Calculator Submit