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In 2001, Bob's Burgers charged $1.50 for a quarter-pound hamburger with all the fixin's, and sold 7,500 of them. In 2002, although Bob raised the price to $1.75, sales of quarter-pound burgers rose to 8,200. Explain why this does not represent a violation of the law of demand.
A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 98% confidence interval for the true proportion of women shoppers who shop on impulse?
Suppose your instructor randomly surveyed his or her performance (i.e., students "graded" the teacher) over many years (assume an 'infinite' population). The frequency of ratings were as follows:
Derive the formula for the expected value Y, derive the formula for the moment generating function of Y
Two boats, the Prada (Italy) and the Oracle (U.S.A.), are competing for a spot in the upcoming America's Cup race. They race over a part of the course several times.
Comprise appropriate (BPS formatted) descriptive statistics table inferential statistics table.
Assuming that the first digit cannot be a zero, compute the number of possible outcomes when the digits can be repeated.
Identify each of the random variables as continuous or discrete.
State the main points of the Central Limit Theorem for a mean. Why is population shape of concern when estimating a mean? What does sample size have to do with all?
The probability that an individual is left-handed is 0.1. In a class of 30 students, what is the probability of finding at least five left-handers?
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
What is the probability that sara will die in her 60th year? using this probability and the $50,000 death benefits, what is the expected loss?
The heights of children 2 years old are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches. Pediatricians regularly measure the heights of toddlers to determine whether there is a problem.
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