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1. Use of bed nets. A study found that the use of bed nets was associated with a lower prevalence of malarial infections in the Gambia.13 A report of the study states that the signi?cance is P 0.001.
Explain what this means in a way that could be understood by someone who has not studied statistics.
2. Purity of a catalyst. A new supplier offers a good price on a catalyst used in your production process. You compare the purity of this catalyst with that of the catalyst offered by your current supplier. The P-value for a test of "no difference" is 0.27. Can you be con?dent that the purity of the new product is as being statistically signi?cant. Explain what this means in simple terms and offer an explanation for why the health and safety students had a higher mean score.
Let n be number of documents in (millions) labeled as classified in year that is t years since 2000. Determine the equation of linear model to explain the data.
Solve the model by using graphical analysis.
Using What's Best! (or Solver) determine the least-cost shipping schedule, where each of three (3) hardware vendors provide up to two hundred (200) units and each of six (6) buyers demand one hundred (100) units.
Select a legitimate sampling strategy and collect at least 30 data points using your created question or topic. Discuss the sampling strategy in sufficient detail so that someone else could repeat your data collection without any difficulties or q..
Did anything surprising or unexpected happen in your results for this experiment?
You are given the following data. Test the claim that there is a difference in the means of the two groups. Use = 0.01. State the null and alternate hypotheses
A researcher compared the Grade Point Average (GPA) of traditional-aged college students
A group of students collected data at the Cedar Point amusement park and reported that the "wait time" to ride the "Top Thrill Dragster" roller coaster is consistently distributed within a range of 40 minutes to 90 minutes.
q1. records on a fleet of trucks reveal that the average life of a set of spark plugs is normally distributed with a
People with type O-negative blood are universal donors. That is, any patient can receive a transfusion of O-negative blood. Only 7% of the American population have O-negative blood.
choo choo paper company produces papers of various thickness. a random sample of 256 cuts had a mean thickness of 30.3
A student is selected at random from the class. What is the probability that the student is both a junior and an economics major?
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