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Spring CD remains in the horizontal position at all times due to the roller at D. If the spring is unstretched when θ = 0° and the bracket achieves its equilibrium position when θ= 32°, determine the stiffness k of the spring and the horizontal and vertical components of reaction at pin A.
In order to monitor the ecological health of the Florida Everglades, various measurements are recorded at different times. The bottom temperatures are recorded at the Garfield Bight station
Which of the following errors will be associated with the sample? Errors due to interviewer bias and selection bias.
Probability of selecting a household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude?
1. consider the trials involved with flipping a fair coin. its reasonable to assume that coin flips are independent.
Either direction from what would have been obtained by interviewing all voters in the United States. Find the sample size suggested by this statement.
An accepted standard deviation for LSAT scores is 125. A random sample of 25 scores had an average of 1,375. Assume a significance level of 0.05. State the appropriate null and alternative hypotheses. Calculate the p-value to test the hypotheses.
At the end of each academic year, 13% of assistant professors become associate professors and 18% leave the department; 21% of associate professors become full professors, and 17% leave the department; and 9% of full professors leave the departmen..
is a binomial distribution a good model for determining the probabilities of various numbers of fatal accidents during
a national manufacturer of unattached garages discovered that the distribution of the lengths of time it takes two
q.1 an experiment was designed to compare several different types of air pollution monitors. the monitor was set up and
a survey was conducted of 611 office workers to determine telephone answering practices i.e how many were able to
Suppose you are testing the differences in attitudes toward health care reform using Democrats, Republications, and Independents. What statistical test would you use?
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