Open Tornadoes-HW6 data. Test if there is a significant difference between the number of tornadoes in August and the number of tornadoes in October on average. Answer questions 1 to 4.(Pick the closest answer) 1. What test did you perform? (6.25 points)

Use Two sided t-test

Step-by-step explanation:

Note that, there are other tools to test for significant difference such as simple regression or multiple regression but when comparing the results of two groups in terms of which is higher or lower, then a two sided t-test would be best appropriate.

Since we want to know if there is a significant difference between the number of tornadoes in August and the number of tornadoes in October on average we use the two sided t-test because a Two sided t-test can show the possibility of positive or negative differences.

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm