Why is a "random sample" not random in the popular sense of the word? What is...

Why is a "random sample" not random in the popular sense of the word? What is another term social scientists use for these kinds of samples?

Expert Solution

orchestra answered 2 years ago

In the summer of 2014, a popular magazine selected a random sample of its subscribers and...

In the summer of 2014, a popular magazine selected a random sample of its subscribers and invited them to vote on its website for their favorite sips of the summer. The results were reported as follows: drink A, 35%; drink B, 30%; drink C, 20%; and drink D, 15%. To test the claim that preference has changed after 5 years, the magazine conducted a similar survey and reported the outcome based on 1,600 randomly selected respondents. The votes for the...

What is the difference between a random sample and a simple random sample?

Word Find A popular diversion in the United States, “word find” (or “word search”) puzzles ask...

Word Find A popular diversion in the United States, “word find” (or “word search”) puzzles ask the player to find each of a given set of words in a square table filled with single letters. A word can read horizontally (left or right), vertically (up or down), or along a 45 degree diagonal (in any of the four directions) formed by consecutively adjacent cells of the table; it may wrap around the table’s boundaries, but it must read in the...

A random sample of 42 cars in the drive-thru of a popular fast food restaurant revealed...

A random sample of 42 cars in the drive-thru of a popular fast food restaurant revealed an average bill of $17.29 per car. The population standard deviation is $5.22. Estimate the mean bill for all cars from the drive-thru with 97% confidence. Round intermediate and final answers to two decimal places

A random sample of 40 cars in the drive−thru of a popular fast food restaurant revealed...

A random sample of 40 cars in the drive−thru of a popular fast food restaurant revealed an average bill of $16.10 per car. The population standard deviation is $4.79. Estimate the mean bill for all cars from the drive−thru with 91% confidence. Use a graphing calculator and round the answers to two decimal places.

A simple random sample of 20 cars in the drive-thru of a popular fast food restaurant...

A simple random sample of 20 cars in the drive-thru of a popular fast food restaurant had an average bill of $18.21 per car. Suppose the distribution of the drive-thru bills is distributed normally with a standard deviation (σ) of $5.89 per car. Constructing a (90%, 95% , or 99%) confidence interval for the µ. a: How do you explain µ? or What is µ in your study? What are you looking for? b: What confidence level have you chose?...

Does it make sense to buy in bulk? Why or why not? What products would be...

Does it make sense to buy in bulk? Why or why not? What products would be better to buy in bulk? What are the benefits and costs for the manufacturer and the consumer with bulk purchases?

Why did Paine title his pamphlet Common Sense? What didn't make "common sense" to Paine? Essentially,...

Why did Paine title his pamphlet Common Sense? What didn't make "common sense" to Paine? Essentially, why was independence from the British right or just according to Paine?Why did Paine title his pamphlet Common Sense? What didn't make "common sense" to Paine? Essentially, why was independence from the British right or just according to Paine?

Facebook has become a very popular website among senior citizens. A random sample of 65 senior...

Facebook has become a very popular website among senior citizens. A random sample of 65 senior Americans showed a sample average of 189 friends with a sample standard deviation of 25 friends. Estimate the number of Facebook friends senior Americans have in a 99% confidence interval. (Do not use direct steps)

Why is Veblen described as an “Institutional Economist”? In what sense is his theory of the...

Why is Veblen described as an “Institutional Economist”? In what sense is his theory of the leisure class with its emphasis on conspicuous consumption an economic theory of human behavior that focuses on consumers as social beings in contrast with the neoclassical theory of consumer behavior that focuses on consumers as autonomous individual utility maximizers? try to be as detailed as possible.

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