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exercise 1does your doctor know part 5 in exercises 14 16 18 and 20 we considered data on articles in the nejm the
data generated by software the following 20 observations on y and x were generated by a computer programa make a
question freshman 15 many people believe that students gain weight as freshmen suppose we plan to conduct a study to
add an outlier refer to the previous exercise add an additional observation with y 50 and x 30 to the data set repeat
add a different outlier refer to the previous two exercises add an additional observation with y 29 and x 50 to the
the regression equation the equation of a least-squares regression line is y 12 6xa what is the value of y for x 5b
titanic here is a table we first saw in chapter 3 showing who survived the sinking of the titanic based on whether they
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progress in math scores every few years the national assessment of educational progress asks a national sample of
metabolic rate and lean body mass compute the mean and the standard deviation of the metabolic rates and lean body
heights of husbands and wives the mean height of american women in their early twenties is about 645 inches and the
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a property of the least-squares regression line use the equation for the least-squares regression line to show that
question - manufacturing and product development staples has six special drafting pencils for sale two of which are
best countries for business figure 45 page 164 gives a scatterplot of the gross domestic product per capita versus the
class attendance and grades a study of class attendance and grades among first-year students at a state university
nypd and sex discrimination the table below shows the rank attained by male and female officers in the new york city
find the predicted value and the residual another individual in the nea data set has nea increase equal to 143 calories
find the sum of the residuals here are the 16 residuals for the nea data rounded to two decimal placesfind the sum of
question steering revisited you could have checked the data in exercise for evidence of racial steering using two -
question - dichotomous random variable suppose the random variable x takes on only two values according to the
whats wrong each of the following statements contains an error describe each error and explain why the statement is
bingeing and politics students in a large statistics class at a university in the northeast were asked to describe
question survival on the titanic one more time in exercise you could have checked for a difference in the chances of