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An important measure of the performance of a locomotive is its "adhesion," which is the locomotive's pulling force as a multiple of its weight. The adhesion of one 4400-horsepower diesel locomotive model varies in actual use according to a Normal distribution with mean ? = 0.41 and standard deviation ? = 0.033
What proportion of adhesions (± 0.001) measured in use are higher than 0.44?
What proportion of adhesions (± 0.001) are between 0.44 and 0.45?
Suppose that this is a simple random sample of adult residents of Maine.
What are some differences between discrete and continuous data? Is the measurement of money continuous or discrete? Explain. Can discrete data be analyzed using a normal distribution? Why or why not?
part i statistical measures statistics is a very powerful topic that is used on a daily basis in many situations. for
The monthly average sales of the Smiling Ninja Computer Company may be approximated to a normal distribution curve. It has a mean of $22,000 and a standard deviation of $3,300.
A sample of 500 respondents was selected in a large metropolitan area to determine various information concerning consumer behavior, Among the questions asked was "Do you enjoy shopping for clothing?
Suppose a candidate running for sheriff claims that she will reduce the average of emergency response to less than 30 minutes. (30 minutes is thought to be the average response time with the current sheriff.)there are no past records, so the actual s..
What is the differences among a proportion, a percentage, and a ratio? How does a non-parametric business scenario differ from a parametric business scenario?
A survey of 600 non-fatal accidents showed that 111 involved the use of a cell phone. Find a point estimate for p, the population proportion of accidents that involved the use of a cell phone.
The first unit required 9800 hours to manufacture. The company expects to experience an 82% unit learning curve. Estimate the cost of the 20th unit. (Round intermediate calculations to 4 decimal places)
When should researchers use different hypothesis tests for independent and related samples? Is one type of sample preferable over the other?
Some students planned a get together, the budget for food was $500.00. Five of the students failed to come because of the distance ad therefore the cost of food for each member increased by $5.00.
find the standard error of estimate se for the data below given the predicted value of y -0.206x 2.097.xnbspnbsp -5
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