Some groups are left out of the sampling process. When subjects decide for themselves to be the sample. When we choose subjects based on ease of access. When we test on one species and apply the results to another.

Q: .What percentage of females are smokers?  2.What percentage of people who do not smoke are males?…

A: Cross tabulation helps a researcher to analyze the results of bivariate relationship between the…

Q: what is atypical sample

A: Atypical sample means something Unusual

Q: 13. Systematic random sampling is used to interview 10% of the students at a local school with 1950…

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Q: As of July 8, 2020, the national average price for a gallon of regular unleaded gasoline was $2.18.…

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Q: find sample variance   41,45,48,49,52,53,55

A:

Q: bias? a.accuracy b.population c. Precision d. Sample

A: It is given in the statement about reducing bias. Here, need to find out the correct choice for the…

Q: 2. Sampling Error. What iS a sampling error? How does it differ from other sources of error? In…

A: Sampling Error :  Sampling error is the deviation between the sample statistic(estimator) and the…

Q: U.S. Centers for Disease Control and Prevention said about 72 million Americans—nearly one out of…

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Q: compare with conveni 5. Literature As part of a college literature course, students must read three…

A: Answer : Number the books from 1 to 9 and use a random number table to produce 3 different one…

Q: An apparel company is coming out with a new line of fall clothes. In order to conduct a survey, it…

A: We can answer it as below from the definition.

Q: Researchers at a drug company are testing the duration of a new pain reliever. The drug is normally…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 2. Explain the systematic random sampling approach and provide an example.

A: Sampling is nothing but the technique of selecting individual members from of the population…

Q: NBA Draft Picks. FromWikipedia’s on-line document “List of First Overall NBA Draft Picks,” we found…

A:

Q: .Poll all county residents about the new tax. Which collection method does this describe?…

A: 5) Poll all county residents about the new tax.

Q: True or false: The sample mean is always normally distributed, even when the population is skewed…

A: Central limit theorem: When the sample size is sufficiently large and obtained from the symmetrical…

Q: variance in hypothesis testing which is tricky to understand. Explain what this is in common…

A: Variance means variability or spread in data points.

Q: How to prevent sampling errors?

A: The natural variations that occur as a result of the selection of different observations in the…

Q: A sample mean is calculated from a sample of size 20.  How many degrees of freedom does the sampling…

A: Degrees of Freedom refers to the maximum number of logically independent values, which are values…