Question 3. A market researcher obtains a sample of 50 people by standing outside a store and asking every 20th person who enters the store to fill out a survey questionnaire until she has the 50 people. i. What sampling method is being used here? ii. Will the resulting sample be a random sample? iii. Will the sample be a simple random sample?

Q: a stratified random sample? WO ber the students from 1 to 2000 and us ey the first 100 students to…

A: Stratified sampling is a process of random sampling. It is used to divide a population into…

Q: What does it mean when sampling is done without replacement? Choose the correct answer below. O A.…

A: The question is about sampling Introduction : Sampling with replacement : It is a method in which…

Q: 5.  The owners of a large shopping mall want to sample the customers about a future construction…

A: Systematic Sample: Systematic sample is a statistical method which involves choosing of sample…

Q: Find the probability that the person is frequently or occasionally involved in charity work. Find…

A: Note : According to our guidelines we are solving only first three sub parts of a question and the…

Q: Directions: Identify the random sampling method used in each item. 1. You are given a list of all…

A: 1. Systematic random sampling. Since, The systematic random sampling is the sampling which uses a…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given that  Margin of error = E = 4.5% = 0.045 90% confident  Level of significance = 10% = 0.10

Q: Construct a single sampling plan (OC curve) for the cdata given in the below N= 500 n=

A: From the given information, N=500n=200c=3 That is, we can accept the lot if the number of defectives…

Q: How would the sampling distribution of ?̅ change if the sample size, n , were increased from 50 to…

A:

Q: Weber's law, a concept taught in most Introduction to Psychology courses, states that the ratio of…

A: X Y X.Y X2 Y2 35 -0.57 -19.95 1225 0.3249 40 -0.1 -4 1600 0.01 45 -1.46 -65.7 2025 2.1316 50…

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: Suppose a random sample of n=270 teenagers 13 to 17 years of age was asked if they use social media.…

A: It is given that 270 teenagers 13 to 17 years of age was asked if they use social media in which 204…

Q: call every 15th phone number on every 5th page of the phone book asking people on the street writing…

A: Sampling methods: In simple random sampling, all the units in the population have equal chance of…

Q: A sociologist wants to know the proportion of adults with children under the age of 18 that eat…

A:

Q: Simple Random Sampling Stratified Random Sampling Systematic Sampling d. Cluster Sampling e.…

A: Simple Random Sampling involves selecting participants from a population in a way that every…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given Information:Margin of error, E=1.5%=0.015Confidence level, c=95%=0.95

Q: C What sampling procedure would you recommend to complete your study? C10. Imagine that you are…

A: Given, for each respondent a value is given from 0 to 21473 Appendix A, starting at column 7 and…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Margin of error =E =0.025 Population proportion p=38%=0.38

Q: 2. Construct a sampling distribution of sample mean and its probability. Samples of 3 cards are…

A: There are 5 cards.  1,2,3,4,5  We know that,  mean= ΣXi/n Possible drawn of 3 cards and their means:…

Q: _______________ is a process of selecting sufficient individual from the target population.…

A: Hey there.! thank you for posting your question. Hope you're doing well.

Q: In a survey conducted by a reputable marketing agency, 248 of 1000 adults 19 years of age or older…

A: Given that ; Sample size (n) = 1000 adults No. Of adults using their cell phones in every bathroom…

Q: . A random sample {3, 5, 10, 16} is taken from a population. Find the sample variance. b. A random…

A: Variance is measure of dispersion. This indicates that how much the data points are deviate from the…

Q: determine what type of sampling technique is used (Simple Random Sampling, Stratified Random…

A: Systematic sampling: Systematic sampling involves of first considering a starting point for…

Q: Identify the sampling techniques used in each scenario. d. a candidate for the local school board…

A:

Q: In an AOL survey of Internet users, this question was posted online: "Have you ever been hit by a…

A: A population is a collection of all possible observations, whereas a census tries to gather whole…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given : confidence : 99% Margin of error = 2.5

Q: Identify the sampling method for each scenario.   ​a.  You randomly sample 200 households in your…

A: scenarios are given and we need to find out which sampling method will be used.

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: Given,margin of error(E)=0.055

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Q: A political campaign is planning a poll throughout Arizona. They randomly select 50 registered…

A: Hey there.! thank you for posting your question. Hope you're doing well.

Q: A family wants to have two children. The children can either be male or female. What is the sample…

A: Let B denotes boy and G denotes girl.

Q: b. Which group is more likely to have taken a vacation in the last year: college graduates or…

A: Given data:   Yes No Total College Graduate 183 67 250 Not a College Graduate 126 124 250…

Q: Homer Simpson is interested in studying the ratio of the various colors of sprinkles on Lard Lad…

A: Population is the set of all objects of interest. Sample is s subset of the population. It is not…

Q: Teip An advocacy organization surveys 967 citizens of country A and 182 of them reported being born…

A: Sample proportion: Sample proportion is the proportion of individual in a sample with specific…

Q: Need the correct answer, thanks. Question: A doctor samples patients by selecting every third…

A:

Q: From this population data set: (3, 6, 9, 12, 18), how many possible samples with a sample size of 2…

A: Note that the data set (3,6,9,12,18) has 5 elements.

Q: Steele Electronics Inc. sells expensive brands of stereo equipment in several shopping malls. The…

A: Answer  Given  Sample size [n] =23 P =33%     =33/100    =0.33

Q: A teacher divides his class into groups, randomly selects 3, and asks all students from the chosen…

A: Given that, a teacher divides his class into groups, randomly selects 3, and asks all students from…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A:

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.