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Sum of (yi)= 28.9 Sum of (yi)^2=95.51 Sum of (xi)=264 Sum of (xi)^2= 7900 Sum of (xiyi)=856.6. The office wants to know iwhether the SAT scores (x) is related to students GPA (y). They collected the following data from 9 students. A. Calculate the least squares estimates of the slope and intercept and calculate sigma^2. B> use the equation of the fitted line to predict what gpa would be expected when the SAT score is 32. C. Determine the significance of the regression model at alpha=.05.
A random sample of 20 users is obtained. Using the Binomial Probability Distribution, determine the following probabilities?
What does the intercept mean in this context? What is the estimated percent decline in visual field per year?
1. Your firm has 3 different manufacturing lines that each produce the same type of widget. There is a 85 percent chance that each line is functional on any given day. Assuming a Bernoulli process what is the probability of all three manufactu..
What is the probability a random sample of 75 students will provide a sample mean Sat score within 20 of the population mean?
Management plans to sample 150 packages per week. What is the appropriate control chart?
Test the hypothesis that the annual income of teachers in areas of more than 500,000 is significantly more than those in areas of less than 100,000. Use the 5% level of risk.
the managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the
Find the equation of the Ellipse whose foci coincide with the foci of the hyperbola x^2 - 3y^2 - 2x - 12y + 1 = 0 and whose eccentricity is the reciprocal of that of the hyperbola and sketch both curves.
a professor is interested in whether there is a difference in counseling students statistics competency scores among
What is the approximate probability that the mean diameter of the sample of 36 bearings will lie within 0.0001 inch of the population mean diameter of the bearings?
suppose 55 of students are female of which 44 have long hair and 45 of students are male of which 15 have long hair.
Determine probability that student was sophomore? Determine the probability of selecting a face card from deck of 52 cards.
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