statcrunch tables and graphs

Tables and Graphs

1. A transportation museum has a building on both sides of Interstate 64/Highway 40. A walkway across the highway connects the two parts of the museum. At one of the exhibits, radar devices are placed in the walkways so that visitors can clock the speeds of motorists on the highway below. Following are the recorded speeds of motorists on a Tuesday afternoon (4:00 – 4:10).

83	77	75	74	72	72	69	68	68	68
68	62	62	62	62	62	61	61	61	61
61	61	60	58	58	58	58	58	57	57
57	57	56	55	54	54	54	54	54	53
52	52	52	52	52	47	47	43	40	40

For the data above, construct a frequency table and histogram. Evaluate the graphics. Is the data normally distributed? If not, is it positively or negatively skewed? Is there kurtosis?

2. Forty professional aeronautics students enrolled in a psychology course were asked how many hours they had studied during the past weekend. Their responses are provided below.

11	2	0	13	5	7	1	8	12	11
7	8	9	10	7	4	6	10	4	7
8	6	7	10	7	3	11	18	2	9
7	3	8	7	3	13	9	8	7	7

For the data above, construct a frequency table and histogram. Evaluate the graphics.

Is the data normally distributed? If not, is it positively or negatively skewed? Is there kurtosis?

• Create a new document that contains your basic graphs for the two data sets. (Be sure to label your tables and graphs in APA format).
• Save your assignment using a naming convention that includes your first and last name and the activity number (or description). Do not add punctuation or special characters.

Note: Use StatCrunch to tabulate and present your results. StatCrunch has an excellent help option. Use this to assist you in making the appropriate calculations.

 

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