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Question: In February 1998, U.S. President Bill Clinton was under investigation for allegedly having had an extramarital affair. A Gallup Poll asked the following two questions: "Do you think most presidents have or have not had extramarital affairs while they were president?" and then "Would you describe Bill Clinton's faults as worse than most other presidents, or as no worse than most other presidents?" For the first question, 59% said "have had," 33% said "have not," and the remaining 8% had no opinion. For the second question, 24% said "worse," 75% said "no worse," and only 1% had no opinion. Do you think the order of these two questions influenced the results? Explain.
Among 500 freshmen pursuing a business degree at a university, 347 are enrolled in an economics course, 247 are enrolled in a mathematics course, and 120 are enrolled in both an economics and a mathematics course. What is the probability that a..
Give a work example and perform a hypothetical 2 population hypothesis test. Create a scenario and do a hypothesis testing example for ANOVA. Give the result and explain what it means.
Four movies are randomly selected. Their lenghts were 110, 96, 125, and 136 minutes. Find a 95% confidence interval of the average of the lenghs of the movie.
Normal distribution with a mean of 33 oz. and a standard deviation of 0.7 oz. What proportion of packets are underweight (i.e., weigh less than 32 oz.)?
in a recent year scores on a standardized test for high school student with a 3.50 to 4.00 grade point average were
Suppose the EPA has established a limit of 5% 2-butoxyethanol in all consumer products. What is the probability that a bottle exceeds this limit?
What is the median number of letters written by females?- What is the median for males?- Explain whether the interquartile range is larger for males or for females.
A confidence interval for the population mean tells us which values of mean are plausible (those inside the interval) and which values are not plausible (those outside the interval) at the chosen level of confidence.
On a particular day a security camera is installed. Using an entry sensor, the camera takes pictures of every customer entering the shop.
A company has set a goal of developing a battery that lasts over 5 hours in continuous use in a sample of 42 of these batteries the mean life time was 306.25 hours with a standard deviation of 29.31
A letter in the December 1995 issue of Dell Champion Variety Puzzles stated: "I've noticed over the last several issues there have been no winners.
Tips. A waiter believes the distribution of his tips has a model that is slightly skewed to the right, with a mean of $9.60 and a standard deviation of $5.40.
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