Find the percent of all the cars surveyed were foreign.

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Answer 1

Question

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

b.

To determine

Find the percent of American cars were owned by students.

c.

To determine

Find the percent of the students owned American cars.

d.

To determine

Find the marginal distribution of origin.

e.

To determine

Find the conditional distributions of origin by driver classification.

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

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A classification study involving several classifiers was carried out. After training and the usual validation step, the following table shows results for classifiers tried. In below, classifiers are identified as M1, M2 and so on. Sensitivity Specificity M1 0.82 0.82 M2 0.92 0.72 M3 0.72 0.92 M4 0.46 0.47 M5 0.03 0.16 M6 0.13 0.02 M7 0.33 0.64 M8 0.72 0.24 M9 0.47 0.82 M10 0.06 0.84 The following list has statements about the classifiers. In the list, there is a single incorrect statement. Please identify the incorrect statement. Hint 1: recall that a classifier dominates another if both performance measures are better. Hint 2: to help you visualize and compare classifiers, you may want to plot the classifier data in a ROC graph (which will not be submitted). Select one: Qa. O b. Oc. d. By swapping zeroes and ones, M5 can be worsened M8 does not dominate M9 M1 dominates all of M4, M5 and M6 M1 is a good classifier ? e. By swapping zeroes and ones, the performance of M4 does not change…

Consider the following training data, shown below before centering. XY 1 0 1 1 1 1 1 1 00 1 1 1 0 0 1 1 1 0 1 1 This data set will be analysed after centering all columns (not scaling). In what follows, the centered data columns are referred to as X and Y. Using these centered columns, we have the following quantities: XTX = 24/11 = 2.1818; XTY = 13/11 = and YTY = 24/11 = 2.1818. Ridge regression Q1 For 2 = R AR = 1.1818 0.56, compute and write in the provided space the ridge estimate ẞ (0.56). Use decimal numbers, not fractions. Q2 Using the ridge estimate ẞ (0.56) you just computed, determine the percentage of shrinkage achieved with respect to the squared L2 norm. That is, compute the shrinkage using || (0.56)||||||with the OLS estimate. In the provided space, write the shrinkage as percentage between 0 and 100 with decimal values. Lasso AR Q3 The following are several expressions for the lasso estimate: (2) = 0.5833 * (1 - 0.84622); L L (a) = 0.5833 * (1 -0.78572); (A) = 0.5417 *…

Calculate the 95% confidence intervals for the proportion of children surviving, and the proportion of non-crew adult passengers surviving. We want to use the given data to make inferences about the general population of all large boat crashes, so the data set should be treated as a random sample for this purpose. Part 2 The 95% confidence interval for survival rate amongst non-crew adults runs from enter your response here% to enter your response here%. (Round to one decimal place as needed. Use ascending order.) Part 3 The 95% confidence interval for survival rate amongst children runs from enter your response here% to enter your response here%. (Round to one decimal place as needed. Use ascending order.) Part 4 Test the alternative hypothesis that the proportion of children surviving does not equal 35%, and next, test the alternative hypothesis that the proportion of non-crew adult passengers surviving does not equal 35%. Again, the data set should…

Answer 2

Question

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

b.

To determine

Find the percent of American cars were owned by students.

c.

To determine

Find the percent of the students owned American cars.

d.

To determine

Find the marginal distribution of origin.

e.

To determine

Find the conditional distributions of origin by driver classification.

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

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Answer 3

Question

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

b.

To determine

Find the percent of American cars were owned by students.

c.

To determine

Find the percent of the students owned American cars.

d.

To determine

Find the marginal distribution of origin.

e.

To determine

Find the conditional distributions of origin by driver classification.

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

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Answer 4

Question

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

b.

To determine

Find the percent of American cars were owned by students.

c.

To determine

Find the percent of the students owned American cars.

d.

To determine

Find the marginal distribution of origin.

e.

To determine

Find the conditional distributions of origin by driver classification.

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

Expert Solution & Answer

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Answer 5

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

b.

To determine

Find the percent of American cars were owned by students.

c.

To determine

Find the percent of the students owned American cars.

d.

To determine

Find the marginal distribution of origin.

e.

To determine

Find the conditional distributions of origin by driver classification.

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

Answer 6

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

Answer 7

Chapter 3, Problem 38E

a.

To determine

Find the percent of all the cars surveyed were foreign.

Answer 8

b.

To determine

Find the percent of American cars were owned by students.

Answer 9

b.

To determine

Find the percent of American cars were owned by students.

Answer 10

c.

To determine

Find the percent of the students owned American cars.

Answer 11

c.

To determine

Find the percent of the students owned American cars.

Answer 12

d.

To determine

Find the marginal distribution of origin.

Answer 13

d.

To determine

Find the marginal distribution of origin.

Answer 14

e.

To determine

Find the conditional distributions of origin by driver classification.

Answer 15

e.

To determine

Find the conditional distributions of origin by driver classification.

Answer 16

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

Answer 17

f.

To determine

Explain whether the origin of the car is independent of the type of driver.

Answer 18

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Answer 19

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Answer 20

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Answer 21

Ch. 3.2 - A statistics class reports the following data on...Ch. 3.2 - A statistics class reports the following data on...Ch. 3.2 - Prob. 3JC Ch. 3.2 - A statistics class reports the following data on...Ch. 3.2 - A statistics class reports the following data on...Ch. 3.2 - A statistics class reports the following data on...Ch. 3.2 - Prob. 7JC Ch. 3 - Prob. 1E Ch. 3 - 2. Cyber comparison shopping It has become common...Ch. 3 - 3. College value again Consider the survey data in...

Find the percent of all the cars surveyed were foreign.

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Find the percent of all the cars surveyed were foreign.

Find the percent of American cars were owned by students.

Find the percent of the students owned American cars.

Find the marginal distribution of origin.

Find the conditional distributions of origin by driver classification.

Explain whether the origin of the car is independent of the type of driver.

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Chapter 3 Solutions