Question

In: Statistics and Probability

A horse trainer teaches horses to jump by using two methods of instruction. Horses being taught...

A horse trainer teaches horses to jump by using two methods of instruction. Horses being taught by method A have a lead horse that accompanies each jump. Horses being taught by method B have no lead horse. The table shows the number of training sessions required before each horse performed the jumps properly.

Method A

43

23

49

44

39

22
Method B

27

25

48

31

37

46


Method A

47

26

29

33

36

42
Method B

28

45

41

34

51

Use a rank-sum test with a 10% level of significance to test the claim that there is no difference between the training sessions distributions. State the conclusion of the test and interpret your results with a 10% level of significance.

a.

Since the P-value is greater than the level of significance, the data are statistically significant. Based on this, we reject the null hypothesis.
b.

Since the P-value is greater than the level of significance, the data are statistically significant. Based on this, we fail to reject the null hypothesis.
c.

Since the P-value is less than the level of significance, the data are statistically significant. Based on this, we reject the null hypothesis.
d.

Since the P-value is less than the level of significance, the data are statistically insignificant. Based on this, we fail to reject the null hypothesis.
e.

Since the P-value is greater than the level of significance, the data are statistically insignificant. Based on this, we fail to reject the null hypothesis.

Solutions

Expert Solution


orchestra answered 3 years ago
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