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Based on a survey conducted on the DietSmart.com web site, investigators concluded that women who regu- larly watched Oprah were only one-seventh as likely to crave fattening foods as those who watched other daytime talk shows (San Luis Obispo Tribune, October 14, 2000).
a. Is it reasonable to conclude that watching Oprah causes a decrease in cravings for fattening foods? Explain.
b. Is it reasonable to generalize the results of this survey to all women in the United States? To all women who watch daytime talk shows? Explain why or why not.
A linear regression model has a slope of â?"2.5 and an intercept of 10. The sample coefficient of determination is 0.50. What is the value of the sample correlation coefficient?
Choose one contemporary media artifact having to do with crime. This can be a single episode of a television show, a film, a bestselling book, a video game or a news report in any medium and write analysis of how this particular artifact portrays ..
Three times each year, the procurement manager at Phoenix contacts National\'s marketing department to place a monthly order for each of the coming four months.
Use the permutations rule to determine the total number of different ways the winners can be drawn.
A coin-operated coffee vending machine dispenses, on the average, 6 oz of coffee per cup. Can this statement be true of a vending machine that occasionally dispenses only enough to fill the cup half full (say, 4 oz)?
prices of toasters you took a random sample of 18 two-slice toasters and found the mean price was 65.49 and the
Based on the expected value of the lottery ticket, would you pay $1 for a ticket? Round the answer to 3 decimal places. Omit the "tiny_mce_markerquot; sign in your response.)
Discuss the underlying causes that might explain the trend. (c) Use Excel, MegaStat, or MINITAB to fit three trends (linear, quadratic, and exponential) to the time series.
a metropolitan school system consists of three school districts-norths south central. the north district contains 25 of
question suppose a test for a certain disease is given to mike. the probability of a positive test result is .98 if
the owner of brittens egg farm wants to estimate the mean number of eggs laid per chicken. a sample of 20 chickens
A bacteria culture initially contains 2000 bacteria and doubles every half hour. Find the size of the baterial population after 40 minutes. Find the size of the baterial population after 7 hours.
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