During the period 1990–1998 there were 46 atlantic hurricanes, of which 19 struck the united states. during the period 1999–2006 there were 70 hurricanes, of which 45 struck the united states. (a-1) does this evidence convince you that the percentage of hurricanes that strike the united states is increasing, at α = .01? let 1 = proportion of hurricanes in united states from 1990-1998 and 2 = proportion of hurricanes in united states from 1999-2006. choose the correct null and alternative hypotheses.

Option C is correct.

Explanation:

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"we first find value of tax in dollars.

the difference between the two prices   is: 23. 54 - 22 = 1.54

therefore the sales tax in dollars is 1.54

the tax % will be   (amount of tax / original cost price ) × 100

(1.54 / 22) × 100  → (0.07) × 100 =   7

so the tax rate is 7%

we can double check the answer.

7 % of 22   → (7/100) × 22 → 0.07 × 22 = 1.54

22 + 1.54 = 23.54"