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A new student grade balance was checked for stability/ accurancy by weighinga 100 gram weight five times. The results were: 124, 82, 92, 108, 104 grams. y bar= 102 grams, s= 16 grams. check to see if the average weight reading was statistacally equal to 100 grams or not. use he usual five step procudure at sigma= .05.
Stalnaker technique: what effect does the independent variable have on the dependent variable? type of hypothesis? what is independent variable? dependent variable?
a soft-drink machine is regulated so that it discharges an average of 200 milliliters per cup. if the amount of drink
A teacher gave a 25 question multiple choice test. After scoring the tests, she computed a mean and standard deviation of the scores. The standard deviation was 0. Based on this information
Define probability and explain the three perspectives. Provide an example of each. Describe the difference between subjective and probabilistic sampling methods. What are the advantages and disadvantages of each?
Simplify each expression-Perimeter of a rectangle. The perimeter of a rectangular backyard is 6x+6 yards. If the width is x yards, find a binomial that represents the length.
26% of college students say they use credit card because of the rewards program . You randomly select 10 college students and ask each to name the reason he or she uses credit cards.
Suppose that you select a sample of 100 U.S. hospital patients. The probability is 90% that the sample percentage will be within what symmetrical limits of the population?
Three are selected, at random, without replacement from the batch. What is the probability that the third is not defective given that one of the previous two are defective?
What is the optimal solution if the annual return for U.S. Oil changes from $3 to $8 per share (everything else stays the same)? What is the value of the total return?
Biting an unpopped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of cheap popcorn counted 773 kernels and put them in a popperAfter popping, the unpopped kernels were counted
Suppose that your sample mean is 1175 and that your sample standard deviation is 100. Using α=0.05, what is the appropriate conclusion you should draw from your sample?
q1. the ziteck corporation buys parts from international suppliers. one part is currently being purchased from a
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