Use Regression for the follwoing data. Then answer the Questions below. Question

Question

Use Regression for the follwoing data. Then answer the Questions below.

Question 1-Looking at the range of values the variable number of home run hits in minor leagues can take,this variable is a ?

a. Quantitative variable

b. Categorical variable

Question 2

2-In this problem,number of hits in minor leagues is a …?

Select one:

a. predictor variable

b. response variable

c. none of the above

Question 3

3-Which of the following equations properly explains the dependence of major home run hits on minor home run hits,age,and experience?

a. Major HR = Minor HR + age + experience

b. Major HR = -0.206 + 7.640 Minor HR + 0.259 age + 1.754 experience

c. Major HR = -1.970 Minor HR + 0.666 age + 0.136 experience

d. Major HR = -1.970 + 0.666 Minor HR + 0.136 age + 1.176 experience

e. Major HR = 3.306 + 0.486 Minor HR + 0.320 age -1.073 experience

Question 4

4-If the multiplier of age were 6.1 in the above model,it would best mean?

Select one:

a. If a player is one year older,he can hit 6.1 more major home runs on average.

b. For any given player,if one year passes with no baseball activity,he can hit 6.1 more major home runs.

c. If one year passes for a typical player with no baseball activity,he can hit 6.1 more major home runs on average.

d. If one year passes for a typical player who has been involved in professional baseball within the year,he can hit 6.1 more major home runs on average.

Question 5

5-How many major home runs a 25 year old novice with absolutely no professional experience in baseball or leagues is expected to have?

a. -1.79

b. 1.42

c. 3.39

d. 0.14

Major HR Minor HR Age Years Pro 19 13 19 3 23 15 21 3 6 4 22 5 6 12 21 3 7 21 19 2 18 19 21 3 3 0 19 2 7 8 20 1 20 20 21 3 9 12 22 4 11 16 23 6 7 10 21 5 25 19 22 3 4 11 19 3 35 19 20 3 13 12 18 1 18 11 21 3 6 14 21 2 8 10 19 2 12 1 19 2 20 18 24 5 4 22 18 1 11 13 18 2 32 20 23 5 2 4 19 2 22 16 20 4 2 2 19 2 2 2 21 2 9 9 20 2 32 19 19 2 3 6 19 1 10 9 23 6 5 6 21 4 24 18 20 2 10 12 21 3 10 11 22 3 19 12 21 3 2 1 23 4 16 10 21 3 11 26 19 4 28 15 23 3 20 13 24 7 18 12 24 4 9 14 21 3 0 5 18 0 10 12 22 2 20 29 19 2 11 10 20 2 12 10 22 3 8 19 20 4 12 9 23 5 21 13 21 4 11 11 21 2 28 24 21 3 4 7 20 2 38 22 19 2 8 7 23 5 7 8 21 4 4 6 18 1 15 11 23 6 12 12 18 1 3 3 19 3 8 12 18 1 3 0 21 2 24 22 22 4 23 14 23 5 17 12 18 1 22 17 23 4 23 12 24 6 12 11 23 5 6 8 19 2 34 23 20 2 5 15 20 4 21 13 22 3 13 24 21 2 4 5 24 3 8 17 23 4 20 11 21 4 17 10 20 4 11 19 23 4 23 25 23 3 7 28 23 3 5 2 23 3 25 12 24 4 12 25 20 2 6 7 20 1 21 17 22 5 28 26 23 2 7 5 23 5 21 11 19 3 5 13 20 3 22 21 20 2 7 6 21 3 3 6 21 3 7 8 22 4 13 14 18 2 15 12 24 7 26 20 20 2 18 10 24 4 4 7 19 1 19 14 22 4 16 33 22 3 12 21 21 2 10 14 18 1 23 12 20 4 6 9 23 3 16 15 19 2 10 24 22 3 3 0 22 4 2 7 19 2 17 12 24 6 6 11 19 2 19 12 19 3 6 5 24 4 10 9 20 2 6 18 21 3 3 2 20 2 11 11 20 2 18 10 19 1 4 6 21 2 6 12 21 3 29 31 21 2 12 16 18 2 7 22 20 2 8 35 20 1 30 23 23 3

Explanation / Answer

1)a. Quantitative variable

2) a. predictor variable

3)option D d. Major HR = -1.970 + 0.666 Minor HR + 0.136 age + 1.176 experience

4) a. If a player is one year older,he can hit 6.1 more major home runs on average.

5)

predicted score =-1.970+0.136*25=1.42

option B

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