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Between $6.00 and $8.00 (round to 4 decimal places) Find the 40th percentile. 60% of the supermarket items cost more than what amount?
The Kirschner Company has a contract to produce garden hoses for a customer. Kirschner has 5 different machines that can produce this kind of hose. Write a constraint to ensure that if machine 4 is
An experiment was performed to investigate the keyboard feel on a computer (crisp or mushy) and the size of the keys (small medium or large). The response variable is typing speed.
The percent of observations from the N(21.0, 5.2) distribution that are greater than 28. (The percent greater than or equal to 28 is the same, because there is no area exactly above 28.)
Suggest another factor, other than having service performed by the same mechanic, that would violate the assumption of independence.
Find the distribution of the market in the long run or the steady state vector.
Write a brief note to describe the following graphs including its useful to a particular variable or data.
The registrar of a large university knows that 30% of the students come to college with credit for an advance placement (AP) course. The registrar is going to conduct interviews with students regard
The Rhetoric Department offers the popular course "Statistically Speaking" two times ayear. Students seem to like the course, both because it teaches them to integrate quantita-tive analyses into th
According to the UW Madison 2003-2004 Factbook, 11,488 of the 24,890 students enrolled at UW Madison during that year were from Madison County. This is an example of a _________________ statistic.
What type of sampling is being employed if the country is divided into economic classes and a sample is chosen from each class to be surveyed?
If the mean remained the same, but the standard deviation increased to 1.5, what percentage of children would have heights less than 27.5 inches?
Make a histogram including a table consisting of frequencies, class limits, class boundaries, and class widths with the data below: 112, 120, 128, 135, 138, 142, 143, 145, 145, 148, 150, 150, 156, 1
Construct your own empirical probability situation. that is, determine a probability value in relation to your expected degree program (education, leadership, nursing, business, etc.) you should do
Make sure that you include all required steps of the hypothesis testing procedure as outlined in class. B. Construct a 95% confidence interval estimate for the mean force. Explain how the confidence
A light bulb company is studying defects in their lightbulbs 4% of the bulbs have defects in the glass but not the coil 1% of the bulbs have defects in the coil but not the glass 0.4% of the bulbs h
A tool-crib with one attendant serves a group of 10 mechanics. Mechanics work for an exponentially distributed amount of time with mean 20 minutes, then go to the crib to request a special tool.
A statistician has to decide on the basis of two observations whether the parameter ? of a binomial distribution is 1/4 or 1/2; his loss ( a penalty that is deducted from his fee) is $160 if he is w
Show the sampling distribution of the mean amount of health care expenditures for a sample of 100 people. Round your answer to nearest whole value.
What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? At a=.05, test for a significant difference. What is your conclusion?
Among eighteen computers in some store, six have defects. Five randomly selected computers are bought for the university lab. Compute the probability that all five computers have no defects.
The actual percentages of the people in the sample who have heart attacks. The use of statistical methods to make the prediction that US men aged 40 or older who take aspirin every other day have a l