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Assume that the heights are normally distributed (they probably are not) and use your results from #2 as estimates for μ and σ. Find the probability that a sample of 36 statistics students at DTCC has a height of 65 inches or taller.
Heights of Statistics Students at DTCC, in inches67 66 62 66 64 68 67 68 66 69 62 66 6262 64 62 65 68 67 61 65 68 71 69 62 6566 64 61 62 63 68 62 63 71 64 68 65 6471 72 71 61 77 70 71 72 70 71 75 74 6573 69 71 75 68 67 68 71 74 72 70 74 66
The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. Determine the cumulative distribution function of flange thickness.
Using one proportion z test to find whether or not to support the claim - There is little evidence to reject H 0 , therefore they conclude the tvs are 20 pounds on average.
A random sample of 900 workers in a particular city found 342 workers who had full health insurance coverage. Find a 95% confidence interval for the true percent of workers in this city who have full health insurance coverage.
Maria Gomez, a research analyst in the state department of health, has undertaken a study of the possible consequences of overbuilding hospital facilities.
The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:
Employer wishes to interview only those applicants who score in top 15%. What must cut-off score be for interviews?
What is the probability of drawing one or more aces after discarding 5, 7, 8, and 9
Identify each of the random variables as continuous or discrete.
Select 3 differently shaped flowers from a florist or grocery store - (Walmart even has a decent selection - a lily, a carnation, and a snapdragon are all nice and very different from one another).
The mean amount purchased by a typical customer at Churchill\'s Grocery Store is $23.50 with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the foll..
Suppose that the mortgage payments of all homeowners have a normal distribution. What is the mean monthly mortgage paid by all homeowner?
if a gambler rolls a dice twice to get a sum of 10, he wins $10. and if he gets a sum of three, he wins $20. The cost to play the game is $5. What is the expectation of the game?
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