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Question: Zip codes. Holes-R-Us, an Internet company that sells piercing jewelry, keeps transaction records on its sales. At a recent sales meeting, one of the staff presented a histogram of the zip codes of the last 500 customers, so that the staff might understand where sales are coming from. Comment on the usefulness and appropriateness of the display
question calculate sp the sum of products of deviations for the following scores. note both means are decimal values
In a group of college students there are 200 women, 10 of whom smoke. There are 150 men, 32 of whom smoke. Calculate the probability a randomly selected student is a woman or a smoker.
consider the experiments first draw a poisson random variable n with parameterlambda. then perform n independent
At the .01 level of significance, is the mean grade of the female students higher than that of the males?
Identify each of the following variables are qualitative or quantitative
an experiment was performed on a certain metal to determine if the strength is a function of heating time. results
State the hypotheses. State the decision rule & sketch it. Find the sample proportions & z test statistic.
an investigator wants to estimate chocolate consumption dichotomous-eat chocolate or do not in kindergarten students
How often will the team that begins at home win the series? Let's set up the simulation: How will you analyze the response variable?
She figures that each box costs $ 2.59 plus $ 0.21 shipping and handling, which totals $ 2.80, then she adds $ 0.70 profit to each box and sells it for $ 3.50. Do you think this is a good pricing strategy? How would it compare to marking up by a p..
Find the probability that the number who considers themselves baseball fans is (a) exactly eight (b)at least eight and (c) less than eight. If possible use technology to find the probabilities.
1) A pressure gauge indicates the pressure inside a reaction vessel is 318.2 psig. If the barometric pressure is 754 mm Hg what is the vessel's absolute pressure expressed in kPa.
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