In a survey of 3115 adults aged 57 through 85​ years, it was found that 86.1​% of them used at least one prescription medication. Complete parts​ (a) through​ (c) below Construct a​ 90% confidence interval estimate of the percentage of adults aged 57 through 85 years who use at least one prescription medication.

Q: Out of a sample of 600 adults aged 18 to 30, 162 still lived with their parents. Based on this,…

A:

Q: A survey of 540 depressed shoppers found at 32% of them shop on impulse. What is the 99% confidence…

A: Given : Sample Size, n = 540 confidence level,c=0.99 Significance level, α…

Q: a 99% confidence interval

A: Confidence interval :  Confidence interval measures the degree of uncertainty. or it is the…

Q: Suppose a different police department says their SRS resulted in a 95% confidence interval of 10.1%…

A:

Q: In a survey of randomly selected 1040 adults from the US, 83 said they believed that the food they…

A:

Q: From an SRS of 600 U.S. adults, 116 live in a multigenerational household (multiple generation under…

A: We have given that,  Favorable cases (X) = 116 and sample size     (n) = 600  Then,  We will  find…

Q: In a survey of 3153 adults aged 57 through 85​ years, it was found that 86.8​% of them used at least…

A:

Q: In an October 2003 poll conducted by the Gallup Organization, 684 of 1006 randomly selected adults…

A: 1. It is given that the sample of adults selected, n is 1,006 and number of adults who think the…

Q: The student government association at a university wants to estimate the percentage of the student…

A: It is given that margin of error (E) is 0.03 and the confidence level is 0.90.

Q: A poll asked 1011 American adults if they believe there was a conspiracy in the assassination of…

A:

Q: A random sample of 5006 adults in a country includes 755 who do not use the Internet. Construct a…

A: Formula :

Q: A study of 420,095 Danish cell phone users found that 0.0321% of them developed cancer of the brain…

A: Solution: Given  n= 420095 Sample size of Daniel Cell phone users  p^=0.0321Sample proportion of…

Q: A simple random sample of 300 branches out of a total of 1200 branches of a UK travel agency found…

A: Given : Here population is total branches of a UK travel agency  Population Size (N) = 1200 Sample…

Q: In a survey of 3005 adults aged 57 through 85 years, it was found that 81.7% of them used at least…

A: Solution: a. Let X be the number of subjects used at least one prescription and n be the sample…

Q: A recent poll of 1001 Americans age 18 and over conducted in May of 2013 found that 80% of the…

A: Obtain the sample size. The formula of sample size is, Here, confidence level is 0.95.   Use EXCEL…

Q: In a random sample, 136 of 400 people given a flu vaccine experienced some discomfort. Construct a…

A: Given information n = 400 People No of people given vaccine x = 136

Q: In a survey of 612 randomly selected female college students, 141 report that they had been sexually…

A: Given Information:n=612x=141c=95%=0.95

Q: In simple random sample of 150 of workers, 22 said their work place environment is toxic. Construct…

A:

Q: A random variance survey of 495 adults found that 59 had diabetes. which of the following is a 98%…

A:

Q: The Pew Research Center polled n = 1048 U.S. drivers and found that 69% enjoyed driving their…

A: Given Information: Sample size n=1048 69% enjoyed driving their automobiles.

Q: In another pre-election poll, a pollster finds that 442 out of 650 people polled favor Smith.…

A: Given: Total no of people polled , n=650 No. of people favor Smith, x=442 Confidence level=95%

Q: In a survery of 1118 American adults, 626 said they drink  coffee over tea. What would be the 95%…

A: It is given that, the number of American adults said that they drink coffee over tea is 626 out of…

Q: A recent survey found that 35 people out of a sample of 410 South Africans suffer from diabetes.…

A:

Q: In a survey conducted by a reputable marketing agency, 231 of 1000 adults 19 years of age or older…

A: Given Data Sample Size, n = 1000 Number of successes, x = 231.0 Significance…

Q: Out of 100 people sampled, 44 have lied to a family member in the past month. Based on this,…

A:

Q: In a survey of 3332 adults aged 57 through 85​ years, it was found that 80.7​% of them used at least…

A:

Q: In a random sample of 575 American goods, about 46.3% of them were transported by rail in 2017.…

A: Given,   Sample size = 575 Sample proportion = 0.463   Critical value: Using z-table, the z-critical…

Q: survey conducted by Gallup in 2020 asked 1,102 randomly selected U.S. adults, "What do you think is…

A: We have given that  Sample size n=1102 90% confidence interval.  = (0.6773, 0.7227)

Q: In a recent survey of 500 teenagers, 18.6% indicated that they had eaten junk food while watching TV…

A: Given Data: p^=0.186n=500

Q: In a survey of 3367 adults aged 57 through 85​ years, it was found that 84.2​% of them used at least…

A:

Q: In a sample of 56 tax returns filed by local hotel managers in a recent year, the taxable incomes…

A: Given: n=56 Mean= 41225 Standard deviation = 6112

Q: 7. A recent survey of 500 women indicated that 29% of women over age 55 in the study were widows.…

A: Givensample size(n)=500p^=29%=0.29confidence level=90%

Q: In a survey of 3299 adults aged 57 through 85​ years, it was found that 82.2​% of them used at least…

A: It is given that sample size (n) is 3,299 and p hat value is 0.822.

Q: According to the Government Accountability Office (GAO), women comprise of about 17% of the active…

A: Solution: Let X be the number of women enlisted in the military and n be the sample number of…

Q: In a study of woman's bone health, a random sample of 8 women was taken, and their daily calcium…

A:

Q: In a survey participated by 100 college students, it was found out that 60% of them have personal…

A: We have to find confidence interval...

Q: ) In a Gallup poll, 1011 adults were asked if they consume alcoholic beverages and 64% of them said…

A: 11. Given information: The sample size is 1011 adults. 64% of them said that they did. That is,…

Q: A survey conducted by the U.S. department of Labor found the 48 out of 500 heads of households were…

A: Given that, n = 500 x = 48 90% confidence interval

Q: A given poll states "54% of fifth graders read at or above the fifth-grade-level." If there is a…

A: According to the given information it is required to compute the 95% confidence interval for the…

Q: On the Stanford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with a…

A: Given  population mean μ=100, n=sample size=21, sample mean x̄=92, sample standard deviations s=6.92…

Q: Based on a sample of 1000 adult Americans, USA Today reported that 840 of them preferred cheese on…

A: Given that on a sample of 1000 adult Americans, USA Today reported that 840 of them preferred…

Q: In a survey of 3213 adults aged 57 through 85​ years, it was found that 83.9​% of them used at…

A:

Q: A local health centre noted that in a sample of 400 patients, 80 were referred to them by the local…

A: From the provided information, Sample size of patients (n) = 400 80 were referred by the local…

Q: The New York Times conducted a nationwide poll of 1048 randomly selected 13- to 17-year-olds. to…

A:

Q: A college alumni Organization sent a survey to all recent graduates to ask their annual income. 20%…

A: Given, All recent graduates of a college were asked their annual income for a survey that was…

Q: In a survey of 952 respondents, 620 of them voted in a recent election. Find a 95% confidence…

A: From the provided information, Number of respondents (n) = 952 Number of respondents who voted in a…

Q: Do younger people use Twitter more often than older people? In a random sample of 316 adult Internet…

A:

Q: Out of 3064 respondants, 919 of them said they have a dog. Using this data, compute a 95% confidence…

A:

Q: f a Random Sample of 450 adults includes 155 who identify as happy, compute an 80% confidence…

A: Given data,n=450x=155sample proportion p=xn=155450=0.34z-value at 80% confidence is Zc=1.282

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.