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.

In a survey of 2275 adults, 709 say they believe in UFOS. Construct a 90% confidence interval for the population proportion of adults who believe in UFOS. A 90% confidence interval for the population proportion is ( ). (Round to three decimal places as needed.)

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.

In a survey of 2300 adults, 718 say they believe in UFOS. Construct a 90% confidence interval for the population proportion of adults who believe in UFOS. A 90% confidence interval for the population proportion is (,). (Round to three decimal places as needed.)

Answer Part B

4.A prior study(by Pew Research 2021)found that 35 out of 50 randomly selected US adults between the ages of 18 to 29 use (or have used) Instagram. Construct a 99% confidence interval for the population proportion of US adults between the ages of 18 to 29 use (or have used) Instagram. (round to three decimal places)   a.Identify the following: X, N, P   b.Which distribution should you use for this problem?   c.What is the corresponding critical value for a 99% confidence interval?     d.Calculate the margin of error (3 decimal places)   e.Construct a 99% confidence interval f. Interpret the interval.

In a survey of 2322 adults, 729 say they believe in UFOS. Construct a 90% confidence interval for the population proportion of adults who believe in UFOS. A 90% confidence interval for the population proportion is (.). (Round to three decimal places as needed.)

Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest celebrities in a country. Construct a 95​% confidence interval. What does the result tell us about the population of all​ celebrities? Do the data appear to be from a normally distributed population as​ required?   245 210 186 168 166 163 156 156 156 156

The following is the number of hours of sleep obtained by eight college freshmen.  Use the data to find a 92% confidence interval for the true mean number of hours of sleep by college freshmen. ​​7.5​    8.0​   6.5​  24​  8.5​  6.5​  7.0​   7.5

In a survey of 3279 adults aged 57 through 85​ years, it was found that 81.9​% of them used at least one prescription medication. Complete parts​ (a) through​ (c) below. How many of the 3279 subjects used at least one prescription​ medication? ​(Round to the nearest integer as​ needed.) Construct a​ 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication