Question

In: Statistics and Probability

Upload US crime data and compare the murder counts for the states of Florida, Texas and...

Upload US crime data and compare the murder counts for the states of Florida, Texas and New York. Your job is to identify which of the two states is most correlated to Florida. Make scattered plot chart with X representing Florida and Y representing that state in question, plot the line and compute the R-square. Answer the questions:

I) What are the approximate slope and the R-squares on your chart? (10 points)

  • a. 2.09 & 0.74
  • b. 0.51 & 173.66
  • c. 0.51 & 0.844
  • d. 1.64 & 0.84
  • e. None of the above

II) What is the approximate Y-intercept and what is its interpretation? (10 points)

  • a. -35.49 & There is no interpretation
  • b. -35.49 & When there are no murders in Florida there will be -35.49 murders in TX
  • c. -35.49 & When there are no murders in Florida there will be 35.49 murders in TX
  • d. -581.17 & When there are no murders in Florida there will be 581.17 murders in NY
  • e. None of the above

III) What does each dot represent? (10 points)

  • a. The comparison in murder counts between Texas and Florida
  • b. A year
  • c. A state
  • d. A crime
  • e. None of the above

IV) The highest dot on your chart has (approximately) the following Y-coordinate (10 points)

  • a. 4096
  • b. 2652
  • c. 1522
  • d. 3652
  • e. None of the above

FL

TX

NY

469

9

482

400

16

424

422

22

373

390

24

391

503

15

390

491

15

410

504

20

459

501

28

498

636

30

526

551

26

588

702

36

597

745

30

606

871

33

704

834

37

683

868

37

629

711

32

677

692

55

609

593

44

586

731

49

600

877

66

600

743

55

619

960

50

541

713

53

545

483

56

490

546

47

539

620

50

520

686

53

515

735

55

519

748

47

510

820

45

584

767

52

711

849

52

769

741

54

723

789

58

785

703

56

772

683

76

677

630

63

619

563

50

614

618

65

612

583

44

552

651

43

560

598

67

505

606

47

548

657

60

506

613

46

532

564

56

585

Solutions

Expert Solution

R has been used for statistical computing and answers are given as required.

orchestra answered 2 years ago
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