In a survey of 3172 adults aged 57 through 85 years, it was found that 88.3% of them used at least one prescription medication. Complete parts (a) through (c) below. C a. How many of the 3172 subjects used at least one prescription medication? (Round the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. %
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- In a survey of 3119 adults aged 57 through 85 years, it was found that 86,9% f them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3119 subjects used at least one prescription medication? (Round to the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. %In a survey of 3341 adults aged 57 through 85 years, it was found that 88.1% of them used at least one prescription medication. Complete parts (a) through (c) below. a)a. How many of the 3341 subjects used at least one prescription medication? nothing (Round to the nearest integer as needed.) b) Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. (Round to the nearest integer as needed.) c)What do the results tell us about the proportion of college students who use at least one prescription medication?A survey of several 11 to 12 year olds recorded the following amounts spent on a trip to the mall: $19.55,$25.44,$25.80,$14.87,$11.83,$19.89 Construct the 80% confidence interval for the average amount spent by 11 to 12 year olds on a trip to the mall. Assume the population is approximately normal. Step 1 of 4 : Calculate the sample mean for the given sample data. Round your answer to two decimal places.In a survey of 3061 adults aged 57 through 85 years, it was found that 85.2% of them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3061 subjects used at least one prescription medication? (Round to the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. %The following sample data are from a normal population: 10,9,12,14,13,11,6,5 c. With 95% confidence, what is the margin of error for the estimation of the population mean (to 1 decimal)? d. What is the 95% confidence interval for the population mean (to 1 decimal)? d.Use the given degree of confidence and sample data to construct a confidence interval for the population proportion. Of 786 items tested, 10 are found to be defective. Construct a 98% confidence interval for the percentage of all such items that are defective. O A. (0.93%, 6.00%) O B. (3.18%, 5.18%) OC. (0.34%, 1.34%) O D. (0.34%, 2.20%) O E. (3.34%, 3.59%)In a survey of 3025 adults aged 57 through 85 years, it was found that 89.2% of them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3025 subjects used at least one prescription medication? (Round to the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. %In a survey of3313 adults aged 57 through 85 years, it was found that 88.6% of them used at least one prescription medication. a. How many of the 3313 subjects used at least one prescription medication? (Round to the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. (Round to one decimal place as needed.)what is the effect of selecting a higher confidence level (e.g., 99% vs. 68%) on:1. The associated Z score:A. Increases B. Decreases C. Stays the same 2. The observed sample average:A. Increases B. Decreases C. Stays the same 3. The range of values the population average might take:A. Increases B. Decreases C. Stays the sameIn a poll of 515 human resource professionals, 45.8% said that body piercings and tattoos were big personal grooming red flags. Complete parts (a) through (d) below. a. Among the 515 human resource professionals who were surveyed, how many of them said that body piercings and tattoos were big personal grooming red flags? 236 (Round to the nearest integer as needed.) b. Construct a 99% confidence interval estimate of the proportion of all human resource professionals believing that body piercings and tattoos are big personal grooming red flags. Π (Round to three decimal places as needed.)In a survey of 3239 adults aged 57 through 85 years, it was found that 82.9% of them used at least one prescription medication. Complete parts (a) through (c) below. a. How many of the 3239 subjects used at least one prescription medication? (Round to the nearest integer as needed.) b. Construct a 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication. %Recommended textbooks for youAdvanced Engineering MathematicsAdvanced MathISBN:9780470458365Author:Erwin KreyszigPublisher:Wiley, John & Sons, IncorporatedNumerical Methods for EngineersAdvanced MathISBN:9780073397924Author:Steven C. Chapra Dr., Raymond P. CanalePublisher:McGraw-Hill EducationIntroductory Mathematics for Engineering Applicat…Advanced MathISBN:9781118141809Author:Nathan KlingbeilPublisher:WILEYMathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,Advanced Engineering MathematicsAdvanced MathISBN:9780470458365Author:Erwin KreyszigPublisher:Wiley, John & Sons, IncorporatedNumerical Methods for EngineersAdvanced MathISBN:9780073397924Author:Steven C. Chapra Dr., Raymond P. 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