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compute the correlation coefficient for the data belowx values -3 1 2y values 4 6 -2
solutions: a)-0.227 b)0.431 c)-0.454 d)-0.159
what is the equation for the regression line if n=7, Ex=69, Ey=528 Exy=4754 and Ex^2=825
solutions: a)y'=-3.110+106.089xb) y'=-2.168+109.638xc) y'=109.638-2.168xd) y'=106.089-3.110x
A single box contains 12 gloves, and it has been determined that 6 percent of gloves are defective. What is the likelihood that a box of gloves gets rejected?
The faculty members at Boise State University were surveyed on the question "How satisfied were you with the Summer 2002 Schedule?" Their responses were to be categorized as "very satisfied," "somewhat satisfied," "neither satisfied nor dissatisfi..
Multiple choice questions based on regression - dependent variable Y and an independent variable X is provided.
A catering company is buying equipment in order to set up their own store. They have a choice of two ovens that they can purchase for the store.
With your start time being random and uniformly distributed in this interval. What is the PDF of the time that you have to wait for the first train to arrive?
The delivery times and the number of cases delivered were recorded in the delivery file: Develop a regression model to predict delivery time, based on the number of cases delivered.
A mean of 200 and a standard deviation of 20. Determine the number of boxes,x, where 80% of the number of boxes received is less than x.
The average score for the sample is M = 76. For the general population of college students, writing scores form a normal distribution with a mean of µ = 70.
In a regression analysis involving 30 observations, the following estimated regression equation was obtained.
We will randomly select 100 bags of cookies and weigh the contents of each bag selected. The probability that the sample mean will be between 14.9 and 15.1 ounces is?
Of the 1,4000 homemakers sampled, 420 were able to identify the brand by name. Estimate the value of the population proportion.
Yyielding a $20,000 profit, and a 30% chance that the building will sell for $230,000, yielding a $70,000 profit. What is the expected profit? = E( X - ) = ( xi - What is Var(X)?
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