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Question: This is also Exercise. The CNN website sometimes has a small box called "Quick vote" that contains a question about an interesting topic in the news that day. For example, one question in February 2010 asked, "Should the U.S. military let gays and lesbians serve openly?" Visitors to the website are invited to click their response and to view the results. When the results are displayed, they contain the message, "This is not a scientific poll."
a. What type of sample is obtained in this "Quick vote?"
b. What do you think is meant by the message that "This is not a scientific poll?"
Exercise: The CNN website sometimes has a small box called "Quick vote" that contains a question about an interesting topic in the news that day. For example, one question in February 2010 asked "Should the U.S. military let gays and lesbians serve openly?" Visitors to the website are invited to click their response and to view the results. When the results are displayed they contain the message "This is not a scientific poll."
a. What type of sample is obtained in this Quick vote?
The process is designed to produce tees with a mean weight of .252 ounce. To investigate whether the injection molded is operating satisfactorily, 40 tees were randomly sampled from the last hour's production.
relationship between GRE total scores and GPAs
Lengths had a calculated sample standard deviation of 8 and mean of 9.4. Select the 95% confidence for the true variance of the product lengths. Use the appropriate table in the book.
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The national average for the price of a gallon of unleaded regular gas is $1.16. I believe the price is higher in my area of the country. I want to test my claim by randomly selecting gas prices for 25 stations in my area. The following prices are..
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the joint distribution of a proportion of votes for candidate x and a proportion of votes for candidate y is given by
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a random sample of 16 csn students is taken. the average age in the sample was 27 years with a standard deviation of 4
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