# Two business statistics assignments need asap! No Pdf format!

#### Question 1

1. Baseball stadiums vary in age, style, size, and in many other ways. Fans might think of the size of the stadium in terms of the number of seats; while the player might measure the size of the stadium by the distance from the homeplate to the centerfield fence. Note: CF = distance from homeplate to centerfield fence.

Using the Excell add-in construct your scatter diagram with the data set provide below.

 Seats CF 38805 420 41118 400 56000 400 45030 400 34077 400 40793 400 56144 408 50516 400 40615 400 48190 406 36331 434 43405 405 48911 400 50449 415 50091 400 43772 404 49033 407 47447 405 40120 422 41503 404 40950 435 38496 400 41900 400 42271 404 43647 401 42600 396 46200 400 41222 403 52355 408 45000 408

Is there a relationship between these two measurements for the “size” of the 30 Major League Baseball stadiums?

a. Before you run your scatter diagram answer the following: What do you think you will find? Bigger fields have more seats? Smaller fields have more seats? No relationship exists between field size and number of seats? A strong relationship exists between field size and number of seats? Explain.

c. Describe what the scatter diagram tells you, including a reaction to your answer in (a).

#### Question 2

2. Place a pair of dice in a cup, shake and dump them out. Observe the sum of dots. Record 2, 3, 4, _ , 12. Repeat the process 25 times. Using your results, find the relative frequency for each of the values: 2, 3, 4, 5, _ , 12.

second assignment:

#### Question 1

If you could stop time and live forever in good health, what age would you pick? Answers to this question were reported in a USA Today Snapshot. The average ideal age for each age group is listed in the following table; the average ideal age for all adults was found to be 41. Interestingly, those younger than 30 years want to be older, whereas those older than 30 years want to be younger.

 Age Group Ideal Age 18 – 24 27 25 – 29 31 30 – 39 37 40 – 49 40 50 – 64 44 65 + 59

Age is used as a variable twice in this application.

• The age of the person being interviewed is not the random variable in this situation. Explain why and describe how “age” is used with regard to age group.
• What is the random variable involved in this study? Describe its role in this situation.
• Is the random variable discrete or continuous?

#### Question 2

Find the area under the normal curve that lies to the left of the following z-values.

• Z=-1.30
• Z=-3.20
• Z=-2.56
• Z=-0.64