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A sample of 100 bugs yields an average weight of 3.6 ounces. Assuming that the population standard deviation is 0.6 ounces, find the margin of error in estimating μ (the true mean weight of all bugs of this type) at the 90 % level of confidence.
The researcher found that Abraham Lincoln's educational score did not correlate highly with the expected variable. What is wrong?
Graph this equation put at last five points for the equation. Graph each inequality. use the test point method.
central day school a charter school dedicated to teaching first and second grade students collected data on their
History suggests that the average number of hurricanes formed during a year is 6.0 hurricanes. Find the probability of at most three hurricanes being formed during a randomly selected year.
a student must answer 43 or more questions correctly to obtain a grade of a. what percentage of the students who have
The lead time is 2 weeks.If you were asked to create an (R,s,S) policy for this, what parameters would you pick? Give your reasons.
The top food snacks consumed by adults aged 18-54 are gum, chocolate candy, fresh fruit, potato chips, breath mints/candy, Ice cream, nuts, cookies, bars, yogurt, and crackers.
Temperature is used to measure the output of a production process.When the process is in control, the mean of the process is = 128.5. Construct the x chart for this process if samples of size 6 are to be used.
a population has a known standard deviation of 25. a simple random sample of 49 items is taken from the selected
what is the probability that the mean of a random sample will be equal to or greater than the 97.5 percentile of its
Let U1 and U2 be independent random variables. Suppose that U1 is χ2 with ν1 degrees of freedom while U = U1 + U2 is chi-square with ν degrees of freedom, where ν > ν1. Then prove that U2 is chi-square random variable with ν - ν1 degrees of freedom.
Compute the coefficient of determination, r 2 , and interpret its meaning.
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