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Let S = XTX be the sample covariance matrix where L and P are latent roots and vectors of XTX respectively. Prove that S has latent root and latent vectors P. Using this result show that correlation loadings of S are given by
where si is the ith diagonal element of S, and consequently correlation loadings are the same for both XTX and S. Show also that XTX and S possess the same standardized PC scores, but that unstandardized scores differ.
a completely randomized experiment with two temperatures factor a two lengths of washing time factor b and five
the no. of grams of carbohydrates contained in 1-ounce servings of randomly selected chocolate and non chocolate candy
In this post, you will be challenged to look at how statistical tests, such as correlation are commonly used and the possible limitations of such analyses. In addition, you will need to identify the appropriate application of course-specified stat..
A random sample of 49 employees took a computer literacy test. The sample resulted in a mean score of 75 with a standard deviation of 21. Develop an approximate 95% confidence interval for the population mean of the 600 employees.
Suppose that the risk of allergies for the children of nonsmokers is 0.15. What is the risk of allergies for the children of smokers?
Research has shown that losing even one night's sleep can have a significant effect on performance of complex tasks such as problem solving ( Linde & Bergstroem, 1992).
Formulate and present the rationale for a hypothesis test that Par could use to compare the driving distances of the current and new golf balls.
Suppose you take a random sample of 25 from a lot of 1,000 items but later realize that you should have selected a sample of 40 items instead. How do you correct this error?
The Queen Mary sails between England and the U.S. Stowaways are sometimes found on board. The ages (years) of stowaways from eastbound and westbound crossings are given below. Eastbound: 24, 24, 34, 15, 19, 22, 18, 20, 20, 17 Westbound: 41, 24, 32..
from experience a high-jumper knows that he can clear a height of at least 1.78 meters once in 5 attempts. he also
It could not do anything with the airport and suffer a loss of revenue. The current value of raised revenue from a new airport is in question.
What proportion of the variation in listing price is determined by variation in the square footage? What proportion of the variation in listing price is due to other factors?
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