# of Hurricanes from XXXXXXXXXX year,#hurricanes. 1850,2 1860,1 1870,1 1880,4 1890,4 1900,2 1910,6 1920,8 Mean: 3.500 Standard Deviation: 2.507 # of Hurricanes from XXXXXXXXXX year,hurricanes. 1930,16...

# of Hurricanes from 1850-1920

year,#hurricanes.

1850,2

1860,1

1870,1

1880,4

1890,4

1900,2

1910,6

1920,8

Mean: 3.500

Standard Deviation: 2.507

# of Hurricanes from 1930-2000

year,hurricanes.

1930,16

1940,9

1950,15

1960,14

1970,8

1980,10

1990,14

2000,23

Mean: 13.625

Standard Deviation: 4.809

1. Calculate the Z score for the difference of the means.