TIME REMAINI 01:22:3
A study is testing the effectiveness of a new allergy medication. Sixty people who reported they have allergies
volunteered to be part of the study and were randomly assigned to one of two groups, as shown in the design
web.
Randomly
30 Receive Medication
Compare Level of Aller
60 Subjects
Assigned
Symptoms after Sever
30 Receive Placebo
Weeks
Which of the following accurately describes the benefit of comparison in the experiment shown in the design web?
The level of allergic symptoms in both
groups can be compared to if see if the new medication had a significant
effect.
The overall level of allergic symptoms can be used to determine if the new allergy medication had a significant

answer: im gonna go with milli

step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt