Statistics

2. (-/8 Points DETAILS ASWSBE14 E 008 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You may need to use the appropriate appendix table or technology to answer the question Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 30 typical one-hour massage therapy session showed a average charge of $5 The population standard deviation for an hour session 35.5 () wat sumptions about the population should we be willing to make it a margin of error desired) We should be willing to make the sumption that the populations at approximately norma We should be willing to make the assumption that the population is at least approximately bimodal We should be willing to make the motion that the population is aastapreemiately skewed left We should be willing to make the motion that the population is at least approximately uniform We should be willing to make the assumption that the population is at least aproximately skewed Un condence, what is margin of resund your answer to the nearest Ung 90cc, what is the margin of error in sound your answer to the nearest cent) MY NOTES ASK YOUR TEAC 3. 1-/12 Points] DETAILS ASWSBE14 8.1.011.MI. You may need to use the appropriate appendix table or technology to answer this question For at distribution with 20 degrees of freedom, find the area, or probability, in each region (Round your answers to three decimal places.) (a) to the right of 2.086 (b) to the left of 2528 (c) to the left of -1.725 (d) to the right of 1.325 (e) between 2005 and 2.066 (1) between 1.225 and 1.725 MY NOTES ASK YOUR TEACHER 4. [-/14 Points) DETAILS ASWSBE14 8.E.014 You may need to use the appropriate appendix table or technology to answer this question A simple random sample with n = 53 provided a sample mean of 2015 and a sample standard deviation of 44. (Round your answers to one decimal place) a (a) Develop a 90% confidence interval for the population mean to (b) Develop a 95% confidence interval for the population mean to (c) Develop a 99% confidence interval for the population mean to (0) What happens to the margin of error and the confidence intervalos the confidence level is increased? As the confidence level increases, there is a larger margin of error and a more narrow confidence interval As the confidence level increases, there is a smaller margin of error and a wider confidence interval As the confidence level increases, there is a larger margin of error and a wider confidence interval As the confidence level increases, there is a smaller margin of error and a more narrow confidence interval Need Help? DETAILS 5:1-7 Points MY NOTES PRACTICE ANOTHER ASW5BE14E026 ASK YOUR TEACHER You want The user intermedio distrus pret the wee price for a lon reprehe US EIA at states of Wom Antenar den for the price of a pation et reparere decomand the propriate for the US Airthey will to report each of the following man (Round your up to the whole wmber The desired maroor is 10.10. (Theeran oferter 1000 to the desired mary of error 105 Need Help? MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 8-16 Points! DETAILS ASWSBE14 BE 029. ML Wed to use the proprietate or technology towers Question Customers are more at the vertimave time only to find that they have to though we preview and preview as before the movies. Many complaint that the time Devoted to previews is a long Aplinary sample conducted by the Street Journal showed that the standard deviation of the amount of time devoted to previews and Use the pening value for the standard deviation in answer the following questions you up to the nearest wolume) (*) I want to estimate the podation meant for reviews at move theater with a marginal error or seconds, what are should be used! Acum conce We want to the potion mean time for reviews movie wa margin of error of minute, what samples should be done Need Help? MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 7. 1-14 Points DETAILS ASWSBE14 8.0.034 You may need to use the propriate pendix table or technology to the gosti A once how we sample should be taken to obtain a margin of error on for the estimation of population proportion Assume that part data are not available for developing planning for your answer up to the nearest whole number) Need Help? MY NOTES ASK YOUR TEACHER PRACTCE ANOTHER (-/12 Points DETAILS ASWS14 L.E.035. MI You may need to use the appropriate cortegy to wwer this question In the 2017, the Consumer Reports Center conducted a survey of 1,007 cuts to learn about the major her concerns. The survey result showed that of the dente de conhece they will be able to afford health and in the future What is the point eronate of the popullin proportion of who accounce they wil bewebe und hat warance in the future round your armer to two decoratie C) Mocoronce, what is the marynet er round your answer to four decimale) (c) Develop a confidence tarvel for the population proportion of adults who lack contact they will be able to afford health nurance in the future. (Round your newer to four decima 10) Develop a contiene intervalos population proportion (Round your answer to four decimal places MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER ASWSBE14 8.6.049.ML 9.-/B Points) DETAILS You may need to use the appropriate appendix tato technology tower this A conducted by the American Automobile Action showed that family of four spends an average of 15.60 per day while on vacation Suppo a sample of 64 mies of four vatering Posted in a menos per day and a sample standard deviation (6) Develop confidence interval time of the mean tunt spent per day in dotare by atomy of four visiting Niagara Fallound your answers to the eartcent) to ed on the confidence interrompre co topear that the poprown mean amount spent per day by feminista Nagara Faltamers from the mean reported by the American Automobil The for the colource interval for the option manat arahan veral average daily wcation expenditure of $235.60 per day. The the ution managers Foss than the overall vera ON The lower for the confidence interval for the population manat arater than everal were daly vacation expenditure of $215.6 per day This Cannot determine the population manat Nagara Fall is greater than the overal vrage daly vacation expenditure No. The verwerage daily vacation expenditure of $215.60 per day is between the per and lower lots of the confidence for the population manat Nagaro. The ut we cannot determine if the population meant Nagerer is greater than the overall averagedy ctn peniture Yes. The overleveraly Vacation expenditure of $215.60 per day is between the upper and lower lints of the confidence interval for the population mean at Nagore Tots. This suggests the population mean at nagara Falls is less than the overal virage Yes The lower to condence Move for the population mean at gerauis is greater than everal vergetely action expenditure of 215.60 per day This website population meant Nagara Falls is greater than the overal average 10. (-/16 Points DETAILS PRACTICE ANOTHER ASW5BE14 B.L.059. MY NOTES ASK YOUR TEACHER You may need to the appropriate de or tachogy to answer this question Arth ander has conducted extensive arch on social media usage One finding was that of duitsed 18 to 24 Use Snapchat. Another inding was that of those aged 18 to 24 Twitter nume the same cated with both inong is 400 (a) Devendendeval to the proportion of adults aged 18 to 24 whose Snapchat. Round your answers to four decimal places) 10 Dj Develop a concence interval for the proportion of adults aped 18 to 34 who e Twite (tound your awwers to four decimal aces) 10 In what () pr (D), the margin oferter larger Captain why The marriager for to reason. The option of adults aged 18 to 24 who we Twitter than the sample proportion of uits aged 1804 whes Schal. Therefore, the standard of the than the standard error of the latter In addition for a 99 conoce Interve for contra Need Help? 2. (-/8 Points DETAILS ASWSBE14 E 008 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You may need to use the appropriate appendix table or technology to answer the question Studies show that massage therapy has a variety of health benefits and it is not too expensive. A sample of 30 typical one-hour massage therapy session showed a average charge of $5 The population standard deviation for an hour session 35.5 () wat sumptions about the population should we be willing to make it a margin of error desired) We should be willing to make the sumption that the populations at approximately norma We should be willing to make the assumption that the population is at least approximately bimodal We should be willing to make the motion that the population is aastapreemiately skewed left We should be willing to make the motion that the population is at least approximately uniform We should be willing to make the assumption that the population is at least aproximately skewed Un condence, what is margin of resund your answer to the nearest Ung 90cc, what is the margin of error in sound your answer to the nearest cent) MY NOTES ASK YOUR TEAC 3. 1-/12 Points] DETAILS ASWSBE14 8.1.011.MI. You may need to use the appropriate appendix table or technology to answer this question For at distribution with 20 degrees of freedom, find the area, or probability, in each region (Round your answers to three decimal places.) (a) to the right of 2.086 (b) to the left of 2528 (c) to the left of -1.725 (d) to the right of 1.325 (e) between 2005 and 2.066 (1) between 1.225 and 1.725 MY NOTES ASK YOUR TEACHER 4. [-/14 Points) DETAILS ASWSBE14 8.E.014 You may need to use the appropriate appendix table or technology to answer this question A simple random sample with n = 53 provided a sample mean of 2015 and a sample standard deviation of 44. (Round your answers to one decimal place) a (a) Develop a 90% confidence interval for the population mean to (b) Develop a 95% confidence interval for the population mean to (c) Develop a 99% confidence interval for the population mean to (0) What happens to the margin of error and the confidence intervalos the confidence level is increased? As the confidence level increases, there is a larger margin of error and a more narrow confidence interval As the confidence level increases, there is a smaller margin of error and a wider confidence interval As the confidence level increases, there is a larger margin of error and a wider confidence interval As the confidence level increases, there is a smaller margin of error and a more narrow confidence interval Need Help? DETAILS 5:1-7 Points MY NOTES PRACTICE ANOTHER ASW5BE14E026 ASK YOUR TEACHER You want The user intermedio distrus pret the wee price for a lon reprehe US EIA at states of Wom Antenar den for the price of a pation et reparere decomand the propriate for the US Airthey will to report each of the following man (Round your up to the whole wmber The desired maroor is 10.10. (Theeran oferter 1000 to the desired mary of error 105 Need Help? MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 8-16 Points! DETAILS ASWSBE14 BE 029. ML Wed to use the proprietate or technology towers Question Customers are more at the vertimave time only to find that they have to though we preview and preview as before the movies. Many complaint that the time Devoted to previews is a long Aplinary sample conducted by the Street Journal showed that the standard deviation of the amount of time devoted to previews and Use the pening value for the standard deviation in answer the following questions you up to the nearest wolume) (*) I want to estimate the podation meant for reviews at move theater with a marginal error or seconds, what are should be used! Acum conce We want to the potion mean time for reviews movie wa margin of error of minute, what samples should be done Need Help? MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 7. 1-14 Points DETAILS ASWSBE14 8.0.034 You may need to use the propriate pendix table or technology to the gosti A once how we sample should be taken to obtain a margin of error on for the estimation of population proportion Assume that part data are not available for developing planning for your answer up to the nearest whole number) Need Help? MY NOTES ASK YOUR TEACHER PRACTCE ANOTHER (-/12 Points DETAILS ASWS14 L.E.035. MI You may need to use the appropriate cortegy to wwer this question In the 2017, the Consumer Reports Center conducted a survey of 1,007 cuts to learn about the major her concerns. The survey result showed that of the dente de conhece they will be able to afford health and in the future What is the point eronate of the popullin proportion of who accounce they wil bewebe und hat warance in the future round your armer to two decoratie C) Mocoronce, what is the marynet er round your answer to four decimale) (c) Develop a confidence tarvel for the population proportion of adults who lack contact they will be able to afford health nurance in the future. (Round your newer to four decima 10) Develop a contiene intervalos population proportion (Round your answer to four decimal places MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER ASWSBE14 8.6.049.ML 9.-/B Points) DETAILS You may need to use the appropriate appendix tato technology tower this A conducted by the American Automobile Action showed that family of four spends an average of 15.60 per day while on vacation Suppo a sample of 64 mies of four vatering Posted in a menos per day and a sample standard deviation (6) Develop confidence interval time of the mean tunt spent per day in dotare by atomy of four visiting Niagara Fallound your answers to the eartcent) to ed on the confidence interrompre co topear that the poprown mean amount spent per day by feminista Nagara Faltamers from the mean reported by the American Automobil The for the colource interval for the option manat arahan veral average daily wcation expenditure of $235.60 per day. The the ution managers Foss than the overall vera ON The lower for the confidence interval for the population manat arater than everal were daly vacation expenditure of $215.6 per day This Cannot determine the population manat Nagara Fall is greater than the overal vrage daly vacation expenditure No. The verwerage daily vacation expenditure of $215.60 per day is between the per and lower lots of the confidence for the population manat Nagaro. The ut we cannot determine if the population meant Nagerer is greater than the overall averagedy ctn peniture Yes. The overleveraly Vacation expenditure of $215.60 per day is between the upper and lower lints of the confidence interval for the population mean at Nagore Tots. This suggests the population mean at nagara Falls is less than the overal virage Yes The lower to condence Move for the population mean at gerauis is greater than everal vergetely action expenditure of 215.60 per day This website population meant Nagara Falls is greater than the overal average 10. (-/16 Points DETAILS PRACTICE ANOTHER ASW5BE14 B.L.059. MY NOTES ASK YOUR TEACHER You may need to the appropriate de or tachogy to answer this question Arth ander has conducted extensive arch on social media usage One finding was that of duitsed 18 to 24 Use Snapchat. Another inding was that of those aged 18 to 24 Twitter nume the same cated with both inong is 400 (a) Devendendeval to the proportion of adults aged 18 to 24 whose Snapchat. Round your answers to four decimal places) 10 Dj Develop a concence interval for the proportion of adults aped 18 to 34 who e Twite (tound your awwers to four decimal aces) 10 In what () pr (D), the margin oferter larger Captain why The marriager for to reason. The option of adults aged 18 to 24 who we Twitter than the sample proportion of uits aged 1804 whes Schal. Therefore, the standard of the than the standard error of the latter In addition for a 99 conoce Interve for contra Need Help