A famous online video game streamer made a quick survey whether his viewers are playing video games or not. Results showed that almost 100% said they play video games. What kind of bias was made? O Selection Bias O Survivorship Bias O Confirmation Bias Preference Bias
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- An airline wants to survey customers about their overall satisfaction. They take a random sample of 1000 customers who have flown in the past month and email them a survey. The email also offers those who complete the survey a $25 gift card that can be used almost anywhere.Which of these is the best example of nonresponse bias? Satisfied customers might be less likely to complete the survey than dissatisfied customers. People might feel pressured to say they are more satisfied than they really are. Some people might only complete the survey for the gift card. Customers who have flown in the past month might not be representative of all customers.A financial analyst claims that 19% make all purchases with cash, 17% make most purchases with cash, 20% make half of purchases with cash, 33% make some purchases with cash and 11% make no purchases with cash. You take a random selection to see if you can conclude that the distribution is different than what the financial analyst claims. Use a 10% significance to decide and round to the fourth. Categories ObservedFrequency ExpectedFrequency All Cash 38 Most Cash 115 Half Cash 135 Some Cash 231 No Cash 122 Test Statistic: Degrees of Freedom: p-val:Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the respondents, 2346 said they are willing to donate organs after death. In this survey conducted for Donate Life America, 100 adults were surveyed in each state and the District of Columbia, and results were weighted to account for the different state population sizes. a. What percentage of respondents said that they are willing to donate organs after death? b. Based on the poll results, what is the probability of randomly selecting an adult who is willing to donate organs after death? c. What term is used to describe the sampling method of randomly selecting 100 adults from each state and the District of Columbia?
- QUESTION-3 You need to determine the double sampling plan for the lots of 420 items. Under general inspection level-Il and normal inspection and AQL=6.5%, a) Find the double sampling plan. b) Calculate the probability of acceptance of a lot. c) Is it larger than 0.95? Why?This is part of a practice test, want to see if I am doing it right8. The local florist serves 24 schools. The owner wants to interview a sample of 4 principals in detail to find ways to improve services to his/her clients. To avoid bias, the owner chooses a simple random sample size 4. Briefly explain how you could choose a simple random sample. Give an example.
- Please advise. Keep on tossing a coin until one gets a head. List 2 possible outcomes from this sample.Suppose you recruit the next 100 people who visit the DCC cafeteria to participate in a survey. One of the questions you ask is whether the student eats on campus (i.e., in the cafeteria) regularly, and you want to use the sample proportion to estimate the value of the (population) proportion of all DCC students who eat on campus regularly. Do you think this sampling method is likely to be biased? If so, in which direction? This sampling method is not likely to be biased and will produce a representative sample of DCC students. This sampling method is biased and is likely to yield an overestimate for the population proportion. This sampling method is biased and is likely to yield an underestimate for the population proportion.Identify the type of sampling bias guaranteed to occur in each of the sampling schemes, based on the information provided. Some sampling schemes may incur multiple types of bias. You are currently in a labeling module. Turn off browse mode or quick nav, Tab to items, Space or Enter to pick up, Tab to move, Space or Enter to drop. A political poll is conducted by contacting people on landline phones. The pollstersdid not keep track of how many people they contacted who did not respond.A political poll is administered by contacting people on landline phones. The pollsterscontacted 10,00010,000 households, and 23662366 individuals agreed to speak with the caller.A political poll is conducted by setting up a booth at a local shopping mall andinviting passersby to share their opinions.A political poll asks the question, "If you found out that Candidate A did notgraduate from high school, would that change your opinion of how unintelligentCandidate A is?" self‑selectionmulti-use…
