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Use R package IQ Score y 109 102 107 114 96 110 116 128 Height x 62 58 65 67 59 64 65 57 to run the following regression data. The height (in inches) of 8 employees at CBE along with their score of working performance at the banj is given here below.
a. First draw the scatter plot and interprete
b. Fit the regression of Y on X, then interperate your results.
c. Compute the correlation coefficient and Coefficient of Determination. Then draw a conclusion corresponding to each of your results.
The power transmission cable has a weight per unit length of 15 lb/ft . If the lowest point of the cable must be at least 90 ft above the ground, determine the maximum tension developed in the cable and the cable's length between A and B
The January 17, 1994 issue of Time magazine reported that 58% of adult Americans said yes to the question "If you or your spouse were pregnant, would you want the unborn child tested for genetic defects?"
Which represent errors of estimation for individual points, an alternative way to examine the error of the regression model using a single measurement is to determine the sum of all the residuals.
Create a 95% confidence interval for the difference in graduation rates between children of normal and children of very low birth weights. Be sure to check the appropriate assumptions and conditions.
(a) Find the probability that both adults dine out more than once per week.
Construct a 99% confidence interval for µ assuming n = 47. Is the width of the 99% confidence interval larger than the width of the 95% confidence interval.
Consider the (4 X 4) covariance (correlation) matrix of Example 3.2. Verify the results of Theorem 3.8. Also verify that latent vectors of P are orthogonal unit vectors.
An election coming up next week promises to be very close. In fact, assume that 50% are in favor and 50% are against. Suppose you conduct a poll of 791 randomly selected likey votes. Approx. how different will the percent in favor (from the poll) ..
Does a "follow-up reminder" increase the renewal rate on a magazine subscription? A magazine sent out 760 subscription renewal notices (without a reminder) and got 703 renewals.
Briefly describe your experiment. You must have a valid and ethical experiment (NOT an observational study) and/or question.
q1. consider throwing 2 usual dice. in each play we observe the number of dots that stay on top sum the returned result
Let Xn denote the state of the system after the nth step. Explain why {Xn, n = 0, 1, 2, .. .} is a Markov chain and calculate its transition probability matrix.
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