Visit your local library: On a recent Saturday, a total of 1487 people visited a local library. Of these people, 256 were under age 10,472 were aged 10-18, 164 were aged 19-30, and the rest were more than 30 years old. One person is sampled at random.

Q: Compute a 90% confidence interval for the proportion of American adults who mostly drink diet soda.…

A: We have number of sample n= 2027  Number of favourable x= 485 number of people surveyed most drank…

Q: In a survey of 163 subjects, each was asked to indicate how many text messages they send and receive…

A: problem is solved { if it helps please leave positive rating it's matter alot to us Thank you…

Q: A nursing home director keeps a list of every resident they are responsible for. Using this list,…

A: In the systematic sample we select sample after the fixed interval.

Q: A university is polling its students. It selects 200 students at random in the same proportions as…

A: Stratified random sampling is a process of sampling which uses different groups of the population…

Q: uppose you take random samples from the following groups: freshmen, sophomores, juniors, and…

A: Stratified Random Sampling: The population is divided into subgroups then some members are chosen…

Q: what is sampling methods?   A large social media company wants to survey its users about their…

A: Sample is a small part (or) portion of the population. For example, to check the weights of male in…

Q: Identify the type of sample ( Experimental or Observational) Then tell if the sample is biased 9.…

A: 15 households are selected from the Houston area. This is the example of cluster sampling .

Q: A sample of students is collected by randomly selecting 20 students from each of the 58 community…

A: It is specified that 20 students from each of 58 community colleges are randomly sampled.The…

Q: Identify which of these types of sampling is used: random, stratified, systematic, cluster,…

A: Answer:- Given statement is, "A sample consists of every 3rd student from Professor Cuellar’s…

Q: entering your work cafeteria and are approached by an individual to participate in their study by…

A: Given that  You are entering your work cafeteria and are approached by an individual to participate…

Q: Mrs. Feleo samples her class by selecting every ninth person on her class list. Which type of…

A: Mrs. Feleo samples her class by selecting every ninth person on her class list

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: Errors were found and the researcher corrected the data by multiplying by 2.5 and followed by…

A:

Q: In 1955, Life Magazine reported that a 25-year-old mother of three worked (on average) an 80 hour…

A: Given that, Sample size of women n=67 Sample average x¯=83 Sample standard deviation s=10 It is been…

Q: A random sample of 1400 Internet users was selected from the records of a large Internet provider…

A: Given data A random sample of 1400 internet users was selected  and asked whether they would use…

Q: In your "Introduction to College Mathematics" class last semester, the instructor gave four tests.…

A: Given Scores90, 86, 70 , 80Possible sample size will be 1,2,3,4The data has been entered into excel…

Q: A survey of students living in a high-rise residence is to be conducted. The residence has 10…

A: Here it is a two stage sampling because there is randomization in the two stages. First…

Q: In a survey of 782 human resource professionals, each was asked about the importance of the…

A: >>> If you need more axplanation about the topic kindly send a clarification request ,…

Q: 8% of men in the United States are colorblind. If we construct a sampling distribution based on…

A: Central limit theorem: As the sample size large, the sampling distribution of sample means is normal…

Q: Identify what type of random or nonrandom sampling technique is used. Minority of senators are to…

A: Given that minority of senators are to be interviewed. So this implies that a group/type of senators…

Q: Identify the sampling techniques used in each scenario. surveying movie-goers as they exited the…

A: Introduction: It is required to identify the sampling technique used.

Q: A researcher divided subjects into two groups according to gender and then selected 200 members from…

A: Since we know that In stratified sampling we divided homogeneous groups from the heterogeneous…

Q: Given 1,400 freshmen students with 600 male students and 800 female students, describe the way you…

A: The population is of freshmen students =1400The number of male students in  Strata-1 =600The…

Q: In a survey of 671 subjects, each was asked how often he or she watched TV. The survey subjects were…

A: Voluntary response sampling: In voluntary response sampling, the respondents select themselves into…

Q: List two ways to identify a simple random sample.

A: Definition: Simple random sampling is defined as a sampling technique where every item in the…

Q: A researcher wants to estimate the percentage of adults in Georgia that have not graduated from high…

A: As we know Statistics represents sample and Parameter represents population.

Q: Sampling error can be avoided   Multiple Choice   by eliminating nonresponses (e.g., older people).…

A: Given problem Given that   Sampling error can be avoided

Q: Identify which of these types of sampling is used: random, systematic, convenience, stratified, or…

A: Given information- We have given that 3 samples are taken from Sophomore, Junior, and Senior class.…

Q: In conducting a statistical study about the number of hours full-time students work at Miramar…

A:

Q: You are doing research on students and you are interested in looking at the differences among…

A: Given that, The collected 100 response from each class. i.e. 100 freshmen, 100 sophomores, 100…

Q: Identify which type of sampling is used.  Every 5th student on the roster is selected for a sample

A:

Q: The names of all 50 students in a class are written on identical slips of paper, and the slips are…

A: The sample can be drawn from population in different ways. Some of the basic sampling methods are…

Q: Ms. Scott, the principal of Phoenix High School, was conducting a survey about student's impressions…

A: Cluster sampling: Cluster sampling is defined as a method of sampling in which, at first, the entire…

Q: Harley Davidson motorcycles make up 13% of all the motorcycles registered in the United States.You…

A: Approximate distribution is normal

Q: Hypertension is when an adult is classified as having high blood pressure (above 130 systolic blood…

A: Answer  X =1219 n =3532

Q: In a statistic class, 10 scorea were randomly selected with the following results were…

A:

Q: Kim Kardashian is interested in studying the phenomenon of selfies more deeply.  She randomly…

A: It is very difficult for the researchers to examine each of the individual units that consist in the…

Q: How many of the 3088 subjects used at least one prescription​ medication?

A: Number of adults aged 57 through 85 years in a survey, n = 3088 p be the probability that an adult…

Q: Identify which sampling method is applied for each situation.

A: Given :

Q: ter screens were randomly selected from a large collection of computer screens in a company’s…

A: A sample is a part of the population, which is selected from the population and if the sample is…

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.