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A United Nations report shows the mean family income for Mexican migrants to the United States is $27,000 per year. A FLOC (Farm Labor Organizing Committee) evaluation of 25 Mexican family units reveals a mean to be $30,000 with a sample standard deviation of $10,000. Does this information disagree with the United Nations report? Apply the 0.01 significance level.
managers at an automobile manufacturing plant would like to estimate the mean completion time of an assembly line
a bag contains 8 red 3 white and 9 blue marbles. if 3 marbles are drawn at random without replacement calculate the
Yyielding a $20,000 profit, and a 30% chance that the building will sell for $230,000, yielding a $70,000 profit. What is the expected profit? = E( X - ) = ( xi - What is Var(X)?
Identifying Sampling TechniquesIn Exercises 23-30, identify the sampling technique used, and discuss potential sources of bias (if any). Explain.
If you buy a box of Wisk, the probability of getting a scoop is 97%. If you buy 9 boxes over the next several months, what is the probability of missing two scoops?
Find the line of best fit and graph it on the scatterplot. State the equation of the line - State the slope of the line of best fit. Carefully interpret the meaning of the slope in a sentence or two
three contestants a b and c each have a balloon and a pistol. from fixed positions they fire at each others balloons.
Random samples of 2009 pickup trucks with 4 cylinder, 5 cylinder, 6 cylinder, and 8 cylinder engines were obtained. Each pickup truck was tested for miles per gallons in highway driving
Choose a construct you would like to measure. Create an operational definition of your construct using at least three peer-reviewed journal articles as references.
Assume that 5% of men and only .25% of women are colorblind. A colorblind person is chosen at random:
Determine how many miles they live from the Bank, is the mean travel distance for this sample considered a parameter or a statistic? Explain.
Let a success (x) be defined as a camera functioning. Find the probability that the robbery was filmed at least by one camera.
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