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Assume that the paired data came from a population that is normally distributed. Construct a 95% confidence interval for the mean of all differences x-y.
x(sub i): 9, 8, 16, 3, 9, 17, 10, 5
y(sub i): 5, 8, 14, 8, 8, 13, 12, 9
find the number of chocolate chips a cookie should contain on the average if it is desired that the probability of a
It is impossible to get a negative value for an F -ratio.
For the past 20 years, the high temperature on April 15th has averaged (j = 62 degrees with a standard deviation of a = 8. Last year, the high temperature was 66 degrees.
Vince Showers, Managing Director for Sleaz Entertainment, claims that the average age of their customers is at least 23. If this is not the case, Showers will face charges of violating local ordinances regarding public decency.
If I have a set of values(direct measurements of dynamic deformations of a road at 100m) between 3 and~1000, how can I calculate the 2 characteristical values wich limits the interval including 85,95% of all possible measurements on this road? Using ..
The random variable x is known to be uniformly distributed between 1.0 and 1.5.
Find/discover an example of statistics in the news to discuss the following statement that represents one of the objectives of statistics analysis: "Statistics helps us make decisions based on data analysis.
we know many types of data fall into a normal distribution with most of the observations falling toward the middle.
Computing the mean and standard deviation for the given data - Find the value for the new standard deviation
the desired percentage of sio2nbspin a certain type of aluminous cement is 5.5. to test whether the true average
if z is a standard normal random variable the area between z 0.0 and z 1.20 is 0.3849 while the area between z 0.0
Two semiconductor factories are being compared to see if there is a difference in the average defect rates of the chips they produce. In the first factory, 250 chips are sampled. In the second factory, 350 chips are sampled. The proportions of def..
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