18,054 79.3 10,606 13,589 16,577 64.7 11,625 12,929 14,198 13,338 DJIA 55.7 57.6 Sunspot Number 7.5 2.9 3.1 16.5

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.CT: Chapter Test
Problem 16CT: How many six-digit license plates can be made if no plate begins with 0 or 1?
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Stocks and Sunspots. Listed below are annual high values of the Dow Jones Industrial Average (DJIA) and annual mean sunspot numbers for eight recent years. Use the data for Exercises 1–5. A sunspot number is a measure of sunspots or groups of sunspots on the surface of the sun. The DJIA is a commonly used index that is a weighted mean calculated from different stock values.

z Scores  Using only the sunspot numbers, identify the highest number and convert it to a z score. In the context of these sample data, is that highest value “significantly high”? Why or why not?

18,054
79.3
10,606
13,589
16,577
64.7
11,625
12,929
14,198
13,338
DJIA
55.7
57.6
Sunspot Number
7.5
2.9
3.1
16.5
Transcribed Image Text:18,054 79.3 10,606 13,589 16,577 64.7 11,625 12,929 14,198 13,338 DJIA 55.7 57.6 Sunspot Number 7.5 2.9 3.1 16.5
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