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Binomial probability. A coin is slightly bent, and as a result the probability of a head is 0.53. Suppose that you toss the coin four times.
(a) Use the binomial formula to find the probability of 3 or more heads.
(b) Compare your answer with the one that you would obtain if the coin were fair.
The average age of the students in the sample was 23 with a standard deviation of 3.5: a) Formulate the hypotheses for this problem.
The thickness of photoresist applied to wafers in semiconductor manufacturing at a particular location on the wafer is uniformly distributed between 0.2050 and 0.2150 micrometers.
At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
How long on average did a voter have to wait in line precinct at A in 2004 before entering in a booth to cast her/his vote?
Develop a model for determining how many people should be sent to contain the fire and for determining the best location for the firebreak.
What happens to the confidence interval and the power of the test at a particular point of interest
Suppose the force acting on a column that helps to support a building is a normally distributed random variable X with mean15 kips and standard deviation 1.55 kips. Compute the following probabilities
heart failures are due to either natural occurrences 82 or outside factors 18. outside factors are related to induced
the office of president vice president secretary and treasurer for an environmental club will be filled from a pool of
in late jan 2009 gallup conducted a national poll of 1053 us adults that asked their views on an economic stimulus
a. Using technology, create a scatter plot of sprint times versus throwing distances. b. Perform a linear-regression analysis of the data to find the line of best fit and the correlation coefficient. c. Describe the relationship between these sprint ..
Use the 0.05 level of significance in testing whether the population means might be equal, then construct the 95% confidence interval for each population mean.
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