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Question: Examine the following sample data for the variables y and x:
x 1 2 3 4 5
y 4 2 5 8 9
a. Construct a scatter plot of these data. Describe the relationship between x and y.
b. Calculate the sum of squares error for the following equations: (1) yn = 0.8 + 1.60x, (2) yn = 1 + 1.50x, and (3) yn = 0.7 + 1.60x.
c. Which of these equations provides the "best" fit of these data? Describe the criterion you used to determine "best" fit.
d. Determine the regression line that minimizes the sum of squares error.
what are the two critical values for a two-tailed test with a 0.01 level of significance when n is large and the
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the length of human pregnancies from conception to birth approximates a normal distribution with a mean of 266 days and
1. Who were some of the proposed builders of the impressive earthwork mounds found throughout the Mississippi and Ohio river valleys? Why were the ancestors of the Native Americans not considered legitimate candidates?
A cumulative frequency distribution is constructed from a frequency distribution by replacing each frequency with the sum of the frequency of the given class and the frequencies of all classes above it, and representing each class by its upper cla..
Suppose the amount of minutes used per month is distributed normally with a mean of 700 minutes and a standard deviation of 120 minutes. What is the probability that more than 820 minutes were used?
An experiment consists of tossing a pair of dice. Use the combinatorial theorems to determine the number of sample points in the sample space S.
If you arbitrarily grab 2 socks out of drawer determine the probability that you grab a matching pair?
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What is the expected number of Republicans who will win office in the coming election?
To revise and reinforce subject content taught up to and including week 5. This assessment contributes to Learning Outcome
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