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A heavy ball is attached to a fixed point O by a light inextensible string of length 2a. The ball is drawn back until the string makes an acute angle α with the downward vertical and is then released from rest.
A thin peg is fixed a distance a vertically below O in the path of the string, as shown in given Figure. In a game of skill, the contestant chooses the value of α and wins a prize if the ball strikes the peg. Show that the winning value of α is approximately 86°.
a. Find the degree of freedom for unequal variance test. b. State the decision rule for .05 significance level. c. Compute the value of the test statistic.
Assume that the profit from each sale is $750 for the situation in additional problem #1. What is the expected weekly profit for a salesperson?
Why is a normal distribution curve a good way to display data? What are the two main properties that describe the curve and what can you tell by just those two numbers. Give an example of a real world situation where you could use a normal curve t..
Location along 500-ft assembly line from which to observe the work habits of the workers on the line. What is the probability that the point she selects is?
fine motor skills were measured in a sample of kindergarteners before and after 6 months of occupational therapy.
Suppose that your company manufactures computer equipment and you must determine if a supplier of your company meets the required product specifications.
data are drawn from a relatively symmetric and bell-shaped distribution with a mean of 35 and a standard deviation of
The cost for the conference room, instructor compensation, lab assistants, and promotion is $9,600. Micromedia rents computers for its seminars at a cost of $60 per computer per day. Question: find the breakeven point for this problem using Excel.
How long will Jill need to run the hose? Express your answer in hours and minutes. Be sure to answer all parts of the question above.
a social researcher believes the color red causes mens attraction to women to increase as well as womens attraction to
a) What is the correlation coefficient & how strong is it? b) What is the best fit regression equation that can predict the MBA GPA from the BS GPA? c) What percent of the variability in the MBA GPA can be explained by the regression model?
a medical researcher wants to determine if a two month jogging program will reduce the resting pulse rate of women aged
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