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A role as a statistical consultant. You are the statistical expert for a graduate student planning her PhD research. After you carefully present the mechanics of signi?cance testing, she suggests using α = 0.25 for the study because she would be more likely to obtain statistically signi?cant results and she really needs signi?cant results to graduate. Explain in simple terms why this would not be a good use of statistical methods.
A player throws a fair coin and wins $1 each time it's heads, but loses $1 each time it's tails. The player will stop when his or her net winnings reach $1, or after n throws, whichever comes sooner. What is the player's probability of winning, an..
please propose a study and write a description of the study below is a tentative guideline for the paper.a. write
Find the reliability of bulb after 20 hours - Given that it lasts 20 hours, find the probability that the bulb lasts another 20 hours.
apple cakes reviews inventory every two weeks with lead time of seven days demand rate 40 units per day and standard
Assuming that the manager wants at most a 5% chance of this happening, at what level should she set the mean fill level? Comment on the ramifications of this step, assuming that the company fills tens of thousands of cans each week.
the results below are from data measuring the per capita number of cigarettes smoked sold by 43 states and the district
Find the optimal order quantity.
At 5% level of significance, is there evidence of difference in mean life of bulbs made by the 2 kinds of machines. What is your conclusion?
a. Construct a simple tabulation in which the counts are according to the type of engine. b. Construct a cross-tabulation describing the fleet, using type of engine and type of transmission as the categorization variables. c. Construct a display sh..
A sample of 15 workers reveal the following minutes: 29, 38, 38, 33, 38, 21, 45, 34, 40, 37, 42, 30, 29, 35. Develop 98% confidence interval for the population mean. Interpret your result.
tthe federal trade commission ftc conducted a study in 1998 of checkout scanners. the ftc inspected 1669 scanners at
a goldfish is swimming at 2.00 cms toward the front wall of a rectangular aquarium. what is the apparent speed of the
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