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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.
When would you use a one- or two-sample hypothesis test? Provide examples. What are the differences between dependent and independent samples? Provide examples.
Twenty five young people were sampled in a survey to be used in determining the average expenditures (in dollars) for an evening of dining out.Create a cumulative relative frequency Ogive chart.
Study About People Getting Exposed to Harmful Things
It has been observed that the number of particles emitted by a radioactive substance which reach a given portion of space during time t follows closely the Poisson distribution with parameter l. Calculate the probability that: i) No particles reach..
Create a bell curve chart that shows the number of men needed per day for a 10,000 man hour job. The start date is 1/1/2008 and the end date is 6/1/2008.
when a survey calls residential telephone numbers at random only 24 of the calls reach a live person. you watch the
If a college includes a minimum score of 1050 among its requirements, what percentage of females do not satisfy that requirement?
the diameter of an electric cable is normally distributed with a mean of 0.8 inch and a standard deviation of 0.01
Calculate the mean and standard deviation for this set of data. Convert your answer back to dollars and cents and give the correlation value between number of beers consumed and BAC?
a study of drinking and driving has found that 40 of all fatal auto accidents are attributed to drunk drivers 2 of all
suppose that you want to estimate the mean ph of rainfalls in an area that suffers from heavy pollution due to the
the number of calories and number of grams of sugar per serving were measured for 36 breakfast cereals. the data are in
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