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31% of American adults surveyed stated that giving up their phone for a day would be more difficult than giving up their significant other. In2012, the United States population over the age of 18 was approximately240,210,000. According to recent research from the PewFoundation, 91% of all American adults have cell phones of some type. Use the statistics given to determine the approximate number of American adults who would find giving up their phone more difficult than giving up their partner.
Fifty million of 94 million households watched the last episode of a popular television show. What percentage of households were not watching the show?
Approximately nothing% of households were not watching the last episode of the show. (Do not round until the final answer. Then round to the nearest tenth as needed.)
Examine demographic variables as potential confounders
Calculate mean and SS for sample of difference scores.
A fire insurance wants to examine the relationship between the amount of fire damage in major residential fires to the distance between the burning house and the nearest fire station. A sample of 15 recent fires in a particular city was taken.
Suppose the population standard deviation is 350 kilowatt hours. Determine the standard error of the mean. With a .95 probability, determine the margin of error.
lara wang is planning a driving tour. while she is interested in seeing the twelve national monuments listed here she
In order to evaluate the rate of error experienced in reading chest x-rays, the following experiment is done. Several people with known tuberculosis (TB) status (through other reliable tests) are subjected to chest x-rays.
Xr17-02 Pat Statsdud, a student ranking near the bottom of the statistics class, decided that a certain amount of studying could actually improve final grades.
Gather three of your favorite packaged foods; perhaps one from each: breakfast, lunch and dinner. Use the model explained in the "Are You Sure It's Fat Free?" to analyze, through the mathematical formula explained the fat content and protein conte..
The upper limit of a 95% confidence interval for the population mean would equal:
The company may test the potential of the rural market for a cost of $25,000. The test has a 90% reliability of correctly detecting the state of nature. Construct the decision tree and determine the optimal decision.
The Big Triple at the local racetrack consists of picking the correct order of finish of the first three horses in the ninth race. If there are 12 horses entered in today's ninth race, how many Big Triple outcomes are possible?
Develop a correlation matrix. Which independent variable has the strongest correlation with the dependent variable? Does it appear there will be any problems with multicollinearity?
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