Essay
In the 19th Century, venereal diseases were the major preventable diseases striking soldiers far from home.During the American Civil War, the United States Army kept records on soldiers diagnosed with syphilis and gonorrhea.An analysis of the incidence of these diseases is presented below.(Incidence is the rate of increase in the number of cases - for these data, the incidence is number of soldiers per 100,000 per month.) a)If, at a particular point in time, the incidence rate for Syphilis is one standard deviation above the mean, what would be the predicted incidence rate for gonorrhea? b)What proportion of the variability in the incidence of gonorrhea is accounted for by the incidence of syphilis? c)From the information presented above, does it appear that the incidence of gonorrhea can be accurately predicted from the incidence of syphilis? Provide statistical evidence for your response.
Correct Answer:

Verified
Correct Answer:
Verified
Q4: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8803/.jpg" alt=" " class="answers-bank-image d-block" rel="preload"
Q7: The least squares line passes through the
Q7: The slope of the least squares line
Q15: The value of Pearson's r is always
Q18: If on average y increases as x
Q24: If r is close to 1, then
Q29: A transformation, or reexpression, of a variable
Q31: Pearson's correlation coefficient, r, does not depend
Q33: The standard deviation about the least squares
Q35: The slopes of the least squares lines