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A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 138 ounces and a standard deviation of 0.40 ounce. You randomly select 45 cans and carefully measure the contents. The sample mean of the cans is 137.9 ounces. Does the machine need to be reset? Explain your reasoning.
(Yes or No) it is (Likely or Very Unlikely) that you would have randomly sampled 45 cans with a mean equal to 137.9 ounces, because it ( Does not lie or Lies) within the range of a usual event, namely within (1, 2, or 3 standard deviations) of the mean of the sample means.
The goal is to get people thinking about how they can actually use correlation and regression in their real life, and where and how can they can really benefit from these techniques?
How is the standard deviation of the data affected if there are disproportionately more 0s and 5s? Why can't we use the methods of this section to test that the last digits of the sample data have a standard deviation equal to 3?
Give a probability distribution for the following: In 1992, the Big 10 collegiate sports conference moved to have women compose at least 40% of its athletes within 5 years.
a local unemployment office keeps track of the number of new claims filed each day. based on data collected it
In the following regression output using data on 40 ferns In Ine textile Industry, the variable PROFIT is measured in millions of dollars per year. ADV Is expenditure on advertising per year in millions. and RD Is expenditure on research ar4 develo..
as of october 2009 the united states federal dept was 11963668027500. if each of the 307000000 people in the united
a. Test whether there is a regression relation; use = 10. State the alternatives, decision rule, and conclusion. What does your test imply about ßl ß2, and ß3? What is the P-value of the test?
Select the study that is most appropriate and EXPLAIN WHY it is most appropriate for the study.
Find the sample proportion and the large-sample margin of error for 95% confidence. Explain in simple terms the meaning of the 95%.
An important application of sensitivity analysis occurs in problems involving multiple attributes. Many decision makers experience difficulty in assessing trade-off weights.
it is estimated that 20 of the athletes competing in a large tournament are users of an illegal drug to enhance
prove that the space p of all polynomials is an infinite-dimensional vector space. hint mathematical induction may be
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