An amazon seller asks all of their customers to participate in a survey for to get a free product. A sample created from this method may suffer from which of these biases? self-selection bias area bias no bias present social desirability

Q: A city official would like to know if there is public support for increasing funding for arts…

A: When we use non probability sampling to draw the sample from the part of population that is each to…

Q: In what research situation do you use an independent samples t-test?

A:

Q: The Organisation for Economic Co-operation and Development (OECD) administered a random telephone…

A: Given that: The OECD administered a random telephone survey during the day regarding the percentage…

Q: The wine company Yellow Tail publishes a report stating that drinking 2 glasses of wine each evening…

A: Given that  The wine company Yellow Tail publishes a report stating that drinking 2 glasses of wine…

Q: A community is considering raising funds to pay for improvements to the community swimming pool. To…

A: We need to identify suitable option regarding study

Q: Consumer Reports uses a survey of readers to obtain customer satisfaction ratings for the nation's…

A: Step 1: Given, n1=250            n2=300 x1¯=86                x2¯=85 And standard deviation is same,…

Q: The College Board SAT college entrance exam consists of two sections: math and evidence-based…

A: The random variable score follows normal distribution. There are two independent samples which are…

Q: Identify the statistical procedures that are appropriate for the data. When possible, identify…

A: A researcher is investigating the relationship between personality and birth order position. A…

Q: Which of the following is an advantage of polling organizations using Internet panels over landline…

A: The following is advantages of polling organisations using internet panels over land line…

Q: It is believed that 11% of all Americans are left-handed. A college needs to know how many…

A: Solution: Given information: n = 210 Sample size  p= 0.11 Population proportion

Q: Rick Douglas, the new manager of food Barn, is interested in the percentage of customers who are…

A: Given, The hypothesis to be tested here is- This is a two tailed test.

Q: What is sample selection bias? Suppose you read a study using data on college graduates of the…

A: Sample selection bias: It occurs when the researcher fails to ensure the randomization in the…

Q: Use ANOVA to determine if student A is the brightest among the four senior students of XYZ…

A: INTRODUCTION :  Completely randomised design.: The mathematical model for one way classified data…

Q: A safety inspector conducts air quality test on a randomly selected group of seven classrooms at an…

A: Population is the set of all subjects of interest.

Q: a bank analyst wants to ask customers who have a mortage with the bank about the customers…

A: If all the units in a sample has equal chance of being selected, then it is called simple random…

Q: The type of household for the U.S. population and a random sample of 411 households in the community…

A: Given information- We have given sample of 411 households. Significance level = 0.05 Hypothesis…

Q: Investigators interested in the association between serum vitamin D levels and various birth…

A: Here, it is given that the investigator wanted to know about the association between serum vitamin D…

Q: How to Assign Subjects in random assignment?

A:

Q: If only 15% of people asked to mail in a survey respond, this is an example of

A: Given that  Only 15% of people asked to mail in a survey respond.  We know that  Response bias :…

Q: When going out to eat, Jamie and his friends prefer going to locally owned restaurants instead of…

A: Self-interest bias  is the people often unconsciously make decisions that serve themselves in ways…

Q: d their driving skills. i. suggest an appropriate null and alternate hypothesis for this study.…

A: i) There is no relationship can be found between driving skills of persons and his/her interest in…

Q: Sampling Method The patients included in the study cited Exercise 1 were those "who sought care for…

A: Among all the sampling techniques the most appropriate technique is Simple random sampling. Because…

Q: product testing organization uses a survey of readers to obtain customer satisfaction ratings for…

A: Given that  Sample size n1=280 , n2=300 Sample means x1=83 , x2=82

Q: Consumer Reports uses a survey of readers to obtain customer satisfaction ratings for the nation's…

A:

Q: n a study, a CSULB professor wants to estimate the average grade point averages (GPA) of all…

A: It is given that sample mean is 2.35 and the standard deviation is 1.03.

Q: In order manufacturer is claiming that its new 2021 SUV model will have better gas mileage than the…

A: (a) The null and alternative hypothesis is, H0:u=30H1:u>30              (right tailed/one tailed)…

Q: a researcher peformed the Mann-Whitney test and found a significant difference between psychologists…

A: Since, the population standard deviation known. Therefore, the value of z should be taken from…

Q: In attributes sampling, why is the risk of overreliance more important than the risk of…

A: Attribute sampling: Attribute sampling is one of the statistical procedure used in the audit…

Q: An email is sent to everyone at a school, encouraging students to participate in a school-wide…

A: An email is sent to everyone at a school, encouraging students to participate in a school-wide…

Q: Do you think it is possible to create a study where there really is no bias sampling done? How would…

A: Here we are asked if it is possible to create a study where there really is no bias sampling done.

Q: Random digit dialing telephone surveys used to exclude cell phone numbers. If the opinions of people…

A: Cell-only sample Landline sample Democrat or lean Democratic 49 47 Refuse to lean either way…

Q: A television newscaster invites viewers to email their opinions about whether the U.S. Congress is…

A: Given that, a television newscaster invites viewers to email their opinions about whether the U.S.…

Q: Advertisers contract with Internet service providers and search engines to place ads onwebsites.…

A: It is given that the sample size n is 380.

Q: If a teacher wants to assess whether there is a relationship between males and females on test…

A: Test performance Males Females Let n group of males and females are writing an exam The test…

Q: We wish to determine whether there is a relationship between the gender of a teenager and their…

A:

Q: A quality control inspector selects a part to be tested. The part is then declared acceptable,…

A: According to the provided details there are 3 options for the first part and 3 options for the…

Q: Conduct a test of independence to determine whether health insurance coverage is independent of the…

A: a) Applying chi-square test of independence: chi-square    χ2 =(Oi-Ei)2/Ei Yes No   small…

Q: A researcher groups college student in a study based on their year in college (freshman, sophomore,…

A: A researcher groups college student in a study based on their year in college (freshman, sophomore,…

Q: Would the sampling distribution be wider or narrower?

A: From the original problem, The sample size is 1000 instead of 500.

Q: Give an example of a study for which the one sample z-test would the appropriate test statistic to…

A: The objective is to give an example of a study for which the one sample z-test would the appropriate…

Q: 2. Identify the most relevant source of bias in this situation: A survey asks the following: Should…

A: Given problem Given that

Q: A college wants to know how many students work while attending school. It surveys students who eat…

A: The social desirability bias is a type of response bias in which the participants answer the…

Q: In 2014, Scotland was considering independence from England, going so far as to take a referendum…

A:

Q: An unbiased sample is a good representation of the population. True or False

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

Q: A study was done looking at cancer rates near a large factory. The researchers collected data for…

A: Given that A study was done looking at cancer rates near a large factory. The researchers collected…

Q: In order to estimate the proportion of students at a small liberal arts college who watch reality TV…

A: Bias: Bias is the unfairness of an experiment. It is the factor that makes the result of the final…