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A. construct a scatter diagram of the following bivariate dataPoint A B C D E F G H I JX 1 1 3 3 5 5 7 7 9 9y 1 2 2 3 3 4 4 5 5 6B. calculate the covarianceC. calculate the sx and syD. calculate r using coefficient of Linear Correlation formulaE. Calculate r using the shortcut for coefficient of linear correlation
Suppose that we observe a random sample size n from a normally distributed population. If we are able to reject H0:µ = µ in favor of a two-tailed alternative hypothesis at the 10% significant level
One question that I have is: Will these sample statistics accurately estimate the purchasing habits of all our customers? Can you share some of your thoughts on that question? Why or why not?
If a sample of 800 homes sold in 2004 is obtained what is the probability that between 175 and 200 homes are going to be used as investment property?
A box contains 10 chips. The chips are numbered 1 through 10. Otherwise, the chips are identical. From this box, we draw one chip at random, and record its value.
Let F be a field and p(x) and irreducible polynomial over F. Prove that (p(x)) is a prime ideal of F[x]. If R has no divisors of zero, then neither does R[x].
A sample of 20 is taken, resulting in a mean of 16.45 and standard deviation of 3.59. Assume that x is normally distributed and used alpha of 0.5 to test hypotheses.
Describe a 5-step hypothesis test for two variances for a particular claim related to your work or life environment. You need to state the claim, define the null and alternate hypothesis, identify the test significance and the test statistic, and ..
11 women and 9 men are the contestant in a competition. If 3 winners are ramdomly selected. what is the probability that they are all men?
Flights arriving at the airport spend anywhere from 50 to 130 minutes in security before unloading passengers. If the unloading times follow the uniform probability distribution, find the average unloading time.
Determine her weighted mean grade? What letter grade did she earn? (A, B, C, D or F).
Inspect table produced in question 2 above. Comment on relative sensitivity of minimum sample size to actual proportion and to desired half width.
What can you tell me about the direction, strength and significance of this association and What would you expect for somebody without any formal education whatsoever and what can you tell me about the nature of this relationship?
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